Geologic mapping involves plotting the location and attitude of the various rock units, faults, and folds on a base map. Geologic maps are used to investigate geologic hazards, mineral resources, groundwater aquifers, and just plain science. Our extensive geologic mapping program is conducted under the STATEMAP part of the National Cooperative Geologic Mapping Program (NCGMP). To learn more about geologic mapping, view our RockTalk: Mapping Colorado.
A geologic map depicts the aerial distribution of various rock types of different ages. Rocks are broken out into mappable units or formations. A formation is a rock type that is distinct enough to separate from the other rocks in the area, and thick enough to show accurately on the map. Each formation is represented by a unique symbol and color on the geologic map. The symbol indicates the rock’s age and formation name.The geologic pattern and symbol for each formation are usually overprinted on a topographic map
Geographic Information System
(GIS) data are used to create many CGS products. Search the map section of our bookstore to see whether the product of interest is available as digital shapefiles. You can also browse the general catalog for publications that include maps in pdf format.
CGS Disclaimer:
Colorado Geological Survey (CGS) is not responsible and shall not be liable to the user for damages of any kind arising out of the use of data or information provided by the CGS, including the installation of the data or information, its use, or the results obtained from its use. ANY DATA OR INFORMATION PROVIDED BY CGS IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Data or information provided by the CGS shall be used and relied upon only at the user’s sole risk, and the user agrees to indemnify and hold harmless the CGS, its officials, officers and employees from any liability arising out of the use of the data/information provided.
LiDAR
LiDAR (Light Detection and Ranging) is a remote sensing method that uses light in the form of a pulsed laser to measure the range (variable distance) between the sensor and the Earth (or whatever the laser is aimed at). The LiDAR sensor may be mounted on an airplane for localized mapping, and there are also dedicated satellite-based systems that can read elevations to the centimeter over wide areas of the Earth. The primary advantage of a LiDAR-generated topographic map is that the methods can ‘see’ through vegetation,
The CGS no longer serves LiDAR data because the State of Colorado has recently opened a new map portal—Colorado Hazard Mapping—that accepts requests for LiDAR data from the public. Once you are at the Hazard Mapping site, look for the tab LiDAR Request form at the top of the screen to make your request.
Other individual LiDAR map servers that are serving Colorado data include:
- USGS National Map has downloadable data from the 3DEP Program
- Colorado GeoData Cache has downloadable LiDAR data for Colorado
- OpenTopography.org map viewer of NSF-specific LiDAR data for Colorado
- OpenTopography.org map viewer of non-NSF LiDAR data for Colorado
- NRCS Geospatial Data Gateway
What is LiDAR?
LiDAR stands for light detection and ranging. This state-of-the art technology relies on the projection of millions of short laser pulses to the ground from a specially equipped aircraft. The result is extremely detailed ground elevation data. The data from these LiDAR reflections are collected by measuring the time it takes for the aircraft to receive each of the millions of laser reflections. The resulting data is then combined and converted into an elevation image that looks exactly like the terrain below the aircraft, including buildings, trees, roadways, creeks, and rock outcrops. Also, using powerful software the “raw” LiDAR data can be processed to generate a number of useful end products, including an accurate “bare-earth” terrain model where trees, vegetation, and man-made structures have been edited out.
How does LiDAR work?
LiDAR systems vary by manufacturer, but all use the following instrumentation: a laser source and detector; a scanning mechanism and controller; airborne GPS and IMU equipment; a high-accuracy, high-resolution clock for timing laser emissions, reflections, GPS/IMU, and scan-angle measurements; high performance computers; and high capacity data recorders. With these components, LiDAR data collection is possible:
- A pulse of laser light is emitted and the precise time is recorded
- The reflection of that pulse from the surface is detected and the precise time is recorded
- Using the constant speed of light, the time difference between the emission and the reflection can be converted into a slant range distance (line-of-sight distance)
- With the very accurate position and orientation of the sensor provided by the airborne GPS and inertial measurement unit (IMU) data, the XYZ coordinate of the reflective surface can be calculated
How is LiDAR data used?
LiDAR offers many advantages over traditional photogrammetric methods for collecting elevation data. These include high vertical accuracy, fast data collection and processing, robust data sets with many possible products, and the ability to collect data in a wide range of conditions.
Because of LiDAR’s ability to penetrate vegetation, the data is used to map unknown young faults, more accurately locate previously mapped faults, and determine the potential for geothermal energy in these faulted areas. The data are also used for creating highly detailed maps of other geologic hazards, such as landslides, debris flows, rockfall, and areas prone to flooding. The maps generated are used by local governments for community planning as well as by emergency management agencies. Our geologic mapping program also relies on LiDAR data to precisely map the extent of bedrock units and surficial deposits that cannot be seen in vegetated areas.
The following is a list of our publications that are specifically map products. Many of our other publications include mapping components as well.
Barkmann, P.E., Curtiss, W., Carroll, C.J., Hosler, D.R., Rogers, N.T., Logan, Z.D., and Zawaski, M.J., 2017a, OF-15-02 Geologic Map of the Castor Gulch Quadrangle, Moffat County, Colorado: Open File Report, scale 1:24,000.
Barkmann, P.E., Houck, K.J., Dechesne, M., Lovekin, J.R., and Johnson, E.P., 2017b, OF-17-04 Geologic Map of the Hartsel Quadrangle, Park County, Colorado: Open File Report, scale 1:24,000.
Barkmann, P.E., Johnson, E.P., and Curtiss, W., 2017c, OF-16-07 Geologic Map of the Ralph White Lake Quadrangle, Moffat and Routt Counties, Colorado: Open File Reports, scale 1:24,000.
Barkmann, P.E., Noe, D.C., McCall, K.J., Hosler, D.R., Zawaski, M.J., Heuscher, S., and Logan, Z.D., 2015, OF-15-01 Geologic Map of the Breeze Mountain Quadrangle, Moffat and Routt Counties, Colorado: Open File Reports, scale 1:24,000.
Barrett, J.K., Pearl, R.H., and Pennington, A.J., 1976, IS-04 Map Showing Thermal Springs, Wells, and Heat-Flow contours in Colorado: Information Series, scale 1:500,000.
Behrendt, J., and Bajwa, L.Y., 1972, MI-36 Bouguer Gravity Map of Colorado: Miscellaneous Investigations, scale 1:500,000.
Berkman, F.E., and Carroll, C.J., 2008, MS-45 Interpretive Geothermal Heat Flow Map of Colorado: Map Series, scale 1:500,000.
Berkman, F.E., Morgan, P., and Watterson, N.A., 2010, MS-48 Oil and Gas Wells in Areas of Colorado with Superior Geothermal Properties: Map Series, scale 1:500,000.
Berkman, F.E., and Watterson, N.A., 2010, MS-51 Interpretive Geothermal Gradient Map of Colorado: Map Series, scale 1:500,000.
Besch, B.W., 1983a, OF-83-04 Reconnaissance Geologic Map of the Cañon City Quadrangle: Open File Report, scale 1:24,000.
Besch, B.W., 1983b, OF-83-05 Reconnaissance Geologic Map of the Florence Quadrangle: Open File Report, scale 1:24,000.
Brady, B.T., 1975, OF-75-00 Fluospar Deposits in Colorado: Open File Reports, scale 1:500,000.
Brand, K.E., and Eakins, W., 1980, RS-13 Coal Resources of the Denver East (1/2° x 1°) Quadrangle, Colorado: Resource Series, scale 1:100,000.
Bretz, T.E., Murray, D.K., and Brchan, C.A., 1979, MS-13 State Lands Status Map: Map Series, scale 1:500,000.
Burbank, W.S., Lovering, T.S., Goddard, E.N., and Eckel, E.B., 1935, HM-03 1935 Geologic Map of Colorado: Historical Map, scale 1:500,000.
Burbank, W. S., L., T.S., and Goddard, E. N., E., E.B., 1935, Geologic map of Colorado, scale 1:500,000.
Carroll, C.J., 2006, MS-43 Coal Resource Maps of Colorado: Map Series, scale 1:500,000.
Carroll, C.J., and Crawford, T.A., 2000, OF-00-03 Geologic Map of the Colorado Springs Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Carroll, C.J., Crawford, T.A., and Cappa, J.A., 2000, OF-00-01 Geologic Map of the Jack Hall Mountain Quadrangle, Fremont County, Colorado: Open File Reports, scale 1:24,000.
Carroll, C.J., Gilliam, M.L., Ruf, J.C., Loseke, T.D., and Kirkham, R.M., 1999, OF-99-06 Geologic Map of the Durango East Quadrangle, La Plata County, Colorado: Open File Report, scale 1:24,000.
Carroll, C.J., Gonzales, D.A., Gianniny, G.L., Houck, K.J., Watterson, N.A., Stetson-Lee, T., and Skyles, E., 2011, MS-49 Geologic Map and Coal Bed Stratigraphy of the Fruitland Formation in Western Archuleta County, Colorado: Map Series, scale 1:12,000.
Carroll, C.J., Kirkham, R.M., and Stelling, P.L., 1996, OF-96-02 Geologic Map of the Center Mountain Quadrangle, Garfield County, Colorado (see OF-10-02 and OF-14-10): Open File Report, scale 1:24,000.
Carroll, C.J., Kirkham, R.M., and Stelling, P.L., 2010, OF-10-02 Geologic Map of the Center Mountain Quadrangle, Garfield County, Colorado: Open File Report, scale 1:24,000.
Carroll, C.J., Kirkham, R.M., and Stelling, P.L., 2014a, OF-14-10 Center Mountain Quadrangle Geologic Map, Garfield County, Colorado: Open File Reports, scale 1:24,000.
Carroll, C.J., Kirkham, R.M., and Wilson, S.C., 1998, OF-98-02 Geologic Map of the Ludwig Mountain Quadrangle, La Plata County, Colorado: Open File Report, scale 1:24,000.
Carroll, C.J., Kirkham, R.M., and Wilson, S.C., 2009a, OF-09-10 Geologic Map of the Ludwig Mountain Quadrangle, La Plata County, Colorado: Open File Reports, scale 1:24,000.
Carroll, C.J., Kirkham, R.M., and Wracher, A., 1997, OF-97-01 Geologic Map of the Rules Hill Quadrangle, La Plata County, Colorado: Open File Report, scale 1:24,000.
Carroll, C.J., Kirkham, R.M., and Wracher, A., 2009b, OF-09-09 Geologic Map of the Rules Hill Quadrangle, La Plata County, Colorado: Open File Reports, scale 1:24,000.
Carroll, C.J., Kirkham, R.M., and Wracher, A., 2014b, OF-14-11 Geologic Map of the Rules Hill Quadrangle, La Plata County, Colorado: Open File Reports, scale 1:24,000.
Collier, J.D., Hornbaker, A.L., and Chenoweth, W.L., 1978, MS-11 Directory of Colorado Uranium and Vanadium Mining and Milling Activities: Map Series, scale 1:500,000.
Collins, D.B., 1985, SP-27 Scenic Trips into Colorado Geology: Special Publication, scale 1:250,000.
Colorado Geological Survey, 2005, OF-05-09 Shapefiles for 2002 Oil and Gas Fields Map of Colorado: Open File Report, scale 1:500,000.
Coogan, J.C., Stork, A., and Fillmore, R.P., 2005, OF-05-05 Geologic Map of the Almont Quadrangle, Gunnison County, Colorado: Open File Report, scale 1:24,000.
Dechesne, M., Raynolds, R.G., Barkmann, P.E., and Johnson, K.R., 2011, OF-11-01P Bedrock Geologic Map of the Denver Basin: Open File, scale 1:250,000.
Dumeyer, J.M., 1975, MS-02 Hydrogeology of St. Charles Mesa, Pueblo County, Colorado: Map Series, scale Variable.
Ellis, M.S., and Kelso, B.S., 1987, MI-32 Cross Sections Showing Stratigraphic Framework of Upper Cretaceous Dakota Sandstone, Mancos Shale, Mesaverde Group, and Mesaverde Formation, and Lower Tertiary Wasatch Formation, West-Central Piceance Basin, Garfield County, Colorado: Miscellaneous Investigations.
Fitzgerald, F.S., Eisinger, C., and Milne, J.J., 2015, MS-44 Oil and Gas Wells Map of Colorado: Map Series, scale 1:500,000.
Gonzales, D.A., Frechette, J.D., Stahr III, D.W., Osmera, T., Morse, N., and Graham, K., 2004, OF-04-09 Geologic Map of the Vallecito Reservoir Quadrangle, La Plata County, Colorado: Open File Reports, scale 1:24,000.
Gonzales, D.A., Potter, K.E., and Turner, D., 2008, OF-08-15 Geologic Map of the Bayfield Quadrangle, La Plata County, Colorado: Open File Report, scale 1:24,000.
Gonzales, D.A., Stahr III, D.W., Frechette, J.D., Dorin, F., Costello, K., Cullicott, C., Kolody, R., Remley, K., and Graham, K., 2003a, OF-03-21 Geologic Map of the Electra Lake Quadrangle, La Plata County, Colorado: Open File Reports, scale 1:24,000.
Gonzales, D.A., Stahr III, D.W., and Kirkham, R.M., 2003b, OF-02-01 Geologic Map of the Hermosa Quadrangle, La Plata County, Colorado: Open File Reports, scale 1:24,000.
Goolsby, S.M., and Reade, N.B.S., 1978, MS-12 Map of Licensed Coal Mines in Colorado as of June 1, 1978: Map Series, scale 1:500,000.
Grauch, V.J.S., and Plesha, J.L., 1989, MI-35 Aeromagnetic Maps of the Unita and Piceance Pasins and Vicinity, Utah and Colorado: Miscellaneous Investigations, scale 1:500,000.
Hardie, J.K., and Zook, J.M., 1997, OF-97-05 Geologic Map and Coal Measures of the Axial Quadrangle, Moffat and Rio Blanco Counties, Colorado: Open File Report, scale 1:24,000.
Hardie, J.K., and Zook, J.M., 2014, OF-14-08 Geologic Map of the Axial Quadrangle, Moffat and Rio Blanco Counties, Colorado: Open File Reports, scale 1:24,000.
Hart, S.S., 1976, MS-05 Geology for Planning in the Redlands Area Mesa County, Colorado: Map Series, scale 1:24,000.
Hemborg, H.T., 1996a, Basement structure map of Colorado with major oil and gas fields: Map Series, scale 1:1,000,000.
Hemborg, H.T., 1996b, MS-30 Basement Structure Map of Colorado with Major Oil and Gas Fields: Map Series, scale 1:1,000,000.
Himmelreich, Jr., J.W., and Noe, D.C., 1999, MS-32 Map of Areas Susceptible to Differential Heave in Expansive, Steeply Dipping Bedrock, City of Colorado Springs, Colorado: Map Series, scale 1:24,000.
Hodge, J., White, J.L., and Nelson, M., 2017, OF-16-06 Geologic Map of the Roubideau Quadrangle, Delta and Montrose Counties, Colorado: Open File Reports, scale 1:24,000.
Hornbaker, A.L., 1978, MS-10 Metal Mining Activity Map of Colorado (excluding Uranium and Vanadium): Map Series, scale 1:500,000.
Hornbaker, A.L., 1984, MS-24 Metal Mining Activity Map of Colorado and Directory, 1984: Map Series, scale 1:500,000.
Houck, K.J., Funk, J.A., Kirkham, R.M., Carroll, C.J., and Heberton-Morimoto, A.D., 2012, OF-12-07 Marmot Peak Quadrangle Geologic Map, Park and Chaffee Counties, Colorado: Open File Reports, scale 1:24,000.
Johnson, R.C., 1989, MI-34 Detailed Cross Sections Correlating Upper Cretaceous and Lower Tertiary Rocks Between the Uinta Basin of Eastern Utah and Western Colorado and the Piceance Basin of Western Colorado: Miscellaneous Investigations, scale 1:500,000.
Jones, D.C., 1975a, OF-75-07 Gas Pipelines in Colorado: Open File Report, scale 1:500,000.
Jones, D.C., 1975b, OF-75-08 Oil Pipelines in Colorado: Open File Report, scale 1:500,000.
Jones, D.C., 1975c, OF-75-09 Oil and Gas Fields of Colorado: Open File Report, scale 1:500,000.
Jones, D.C., 1976a, IS-01 Coal Mines and Coal Fields of Colorado: Information Series, scale 1:500,000.
Jones, D.C., 1976b, OF-76-01 Active/Licensed Coal Mines of Colorado: Open File Reports, scale 1:500,000.
Jones, D.C., 1977, MS-08 Licensed Coal Mines in Colorado: Map Series, scale 1:500,000.
Jones, D.C., Schultz, J.E., and Murray, D.K., 1978, MS-09 Coal Resources and Development Map of Colorado: Map Series, scale 1:500,000.
Junge, W.R., 1978a, OF-78-04 Surficial Geology Hotchkiss-Paonia Reservoir Area, Delta and Gunnison Counties, Colorado: Open File Reports, scale 1:24,000.
Junge, W.R., 1978b, OF-78-11 Geologic Hazards Upper Crystal River Area Gunnison County, Colorado: Open File Report, scale 1:24,000.
Junge, W.R., 1978c, OF-78-12 Geologic Hazards Hotchkiss-Paonia Reservoir Area Delta and Gunnison Counties, Colorado: Open File Report, scale 1:24,000.
Keller, J.W., Houck, K.J., Johnson, E.P., Keller, N.D., Morgan, M.L., Miggins, D.P., and Klemmick, G.F., 2017a, OF-17-06 Geologic Map of the Boreas Pass Quadrangle, Park and Summit Counties, Colorado: Open File Report, scale 1:24,000.
Keller, S.M., Lindsey, K.O., and Morgan, M.L., 2017b, OF-17-03 Geologic Map of the Berthoud Quadrangle, Larimer, Weld, and Boulder Counties, Colorado: Open File Reports, scale 1:24,000.
Keller, J.W., McCalpin, J.P., and Lowry, B.W., 2004, OF-04-04 Geologic Map of the Buena Vista East Quadrangle, Chaffee County, Colorado: Open File Report, scale 1:24,000.
Keller, S.M., and Morgan, M.L., 2018, OF-18-01 Geologic Map of the Frederick Quadrangle, Weld and Broomfield Counties, Colorado: Open File Report, scale 1:24,000.
Keller, J.W., Morgan, M.L., Thorson, J.P., Lindsay, N.R., and Barkmann, P.E., 2007, OF-06-06 Geologic Map of the Palmer Lake Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Keller, J.W., Siddoway, C.S., Morgan, M.L., Route, E.E., Grizzell, M., Sacerdoti, R., and Steveson, A., 2003, OF-03-19 Geologic Map of the Manitou Springs Quadrangle, El Paso and Teller Counties, Colorado: Open File Reports, scale 1:24,000.
Kelso, B.S., Ladwig, L.R., and Sitowitz, L., 1981, MS-15 Directory of Permitted Colorado Coal Mines, 1981: Map Series, scale 1:500,000.
Kirkham, R.M., 1978a, OF-78-06 Isopach Map of the Watkins Lignite Seam and Map Showing Extent of Alluvial Valley Floors and Overburden Thickness Above the Watkins Lignite Seam, Adams and Arapahoe Counties, Colorado: Open File Reports, scale 1:50,000.
Kirkham, R.M., 1978b, OF-78-08 Location Map of Drill Holes Used for Coal Evaluation in the Denver and Cheyenne Basins, Colorado: Open File Report, scale 1:250,000.
Kirkham, R.M., Gilliam, M.L., Loseke, T.D., Ruf, J.C., and Carroll, C.J., 1999, OF-99-04 Geologic Map of the Durango West Quadrangle, La Plata County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Gonzales, D.A., Poitras, C., Remley, K., and Allen, D., 2000, OF-00-04 Geologic Map of the Hesperus Quadrangle, La Plata and Montezuma Counties, Colorado: Open File Reports, scale 1:24,000.
Kirkham, R.M., and Heimsoth, C.M., 2003, OF-02-06 Geologic Map of the Fort Garland SW Quadrangle, Costilla County, Colorado: Open File Reports, scale 1:24,000.
Kirkham, R.M., Houck, K.J., Carroll, C.J., and Heberton-Morimoto, A.D., 2012, OF-12-01 Geologic Map of the Antero Reservoir Quadrangle, Park and Chaffee Counties, Colorado: Open File Reports, scale 1:24,000.
Kirkham, R.M., Houck, K.J., Funk, J.A., Mendel, D., and Sicard, K., 2011, OF-12-08 Minturn Quadrangle Geologic Map, Eagle County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Houck, K.J., Lindsay, N.R., and Keller, S.M., 2007, OF-07-06 Geologic Map of the Garo Quadrangle, Park County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Keller, J.W., Houck, K.J., and Lindsay, N.R., 2006, OF-06-09 Geologic Map of the Fairplay East Quadrangle, Park County, Colorado: Open File Reports, scale 1:24,000.
Kirkham, R.M., Keller, J.W., Price, J.B., and Lindsay, N.R., 2005, OF-05-03 Geologic Map of the South Half of the Culebra Peak Quadrangle, Costilla and Las Animas Counties, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Lufkin, J.L., Lindsay, N.R., and Dickens, K.E., 2004, OF-04-08 Geologic Map of the La Valley Quadrangle, Costilla County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., and Navarre, A.K., 2003, OF-01-04 Geologic Map of the Basin Mountain Quadrangle, La Plata County, Colorado: Open File Reports, scale 1:24,000.
Kirkham, R.M., Shaver, K.C., Lindsay, N.R., and Wallace, A.R., 2003, OF-03-15 Geologic Map of the Taylor Ranch Quadrangle, Costilla County, Colorado: Open File Reports, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., and Cappa, J.A., 1995, OF-95-03 Geologic Map of the Glenwood Springs Quadrangle, Garfield County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., and Cappa, J.A., 1997a, MS-31 Geologic Map of the Glenwood Springs Quadrangle, Garfield County, Colorado: Map Series, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., and Cappa, J.A., 1997b, OF-95-04 Geologic Map of the Shoshone Quadrangle, Garfield County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., and Cappa, J.A., 2008a, MS-35 Geologic Map of the Shoshone Quadrangle, Garfield County, Colorado: Map Series, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., Cappa, J.A., Shaw, C.A., Allen, J.L., and Jones, J.V., 2008b, MS-38 Geologic Map of the Glenwood Springs Quadrangle, Garfield County, Colorado: Map Series, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., Hemborg, H.T., and Stelling, P.L., 1996, OF-96-01 Geologic Map of the Cattle Creek Quadrangle, Garfield County, Colorado (see OF-10-01 and OF-14-14): Open File Report, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., Hemborg, H.T., and Stelling, P.L., 2010, OF-10-01 Geologic Map of the Cattle Creek Quadrangle, Garfield County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Streufert, R.K., Hemborg, H.T., and Stelling, P.L., 2014, OF-14-14 Geologic Map of the Cattle Creek Quadrangle, Garfield County, Colorado: Open File Reports, scale 1:24,000.
Kirkham, R.M., and Widmann, B.L., 1997, OF-97-03 Geologic Map of the Carbondale Quadrangle, Garfield County, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., and Widmann, B., 2008, MS-36 Geologic Map of the Carbondale Quadrangle, Garfield County, Colorado: Map Series, scale 1:24,000.
Kirkham, R.M., Widmann, B.L., and Streufert, R.K., 1998, OF-98-03 Geologic Map of the Leon Quadrangle, Eagle and Garfield Counties, Colorado: Open File Report, scale 1:24,000.
Kirkham, R.M., Widmann, B.L., and Streufert, R.K., 2008c, MS-40 Geologic Map of the Leon Quadrangle, Eagle and Garfield Counties, Colorado: Map Series, scale 1:24,000.
Livaccari, R.F., and Hodge, J., 2009, OF-09-04 Geologic Map of the Fruita Quadrangle, Mesa County, Colorado: Open File Reports, scale 1:24,000.
Madole, R.F., 1999, OF-99-05 Geologic Map of the Hunter Mesa Quadrangle, Garfield County, Colorado: Open File Report, scale 1:24,000.
Madole, R.F., 2003, OF-03-08 Geologic Map of the Falcon NW Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Madole, R.F., 2017, OF-16-05 Geologic Map of the Longmont Quadrangle, Boulder and Weld Counties, Colorado: Open File Reports, scale 1:24,000.
Madole, R.F., and Streufert, R.K., 2001, OF-01-02 Geologic Map of the Gibson Gulch Quadrangle, Garfield County, Colorado: Open File Reports, scale 1:24,000.
Madole, R.F., and Thorson, J.P., 2003, OF-02-02 Geologic Map of the Elsmere Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Matthews, V., and Colorado Geological Survey, 2009, SP-57 Tourist Guide to Colorado Geology: Special Publication.
McCalpin, J.P., Funk, J.A., and Mendel, D., 2012a, OF-12-06 Leadville South Quadrangle Geologic Map, Lake County, Colorado: Open File Reports, scale 1:24,000.
McCalpin, J.P., and Shannon, James R., J., 2005, OF-05-08 Geologic Map of the Buena Vista West Quadrangle, Chaffee County, Colorado: Open File Report, scale 1:24,000.
McCalpin, J.P., Temple, J., Sicard, K., Mendel, D., and Ahmad, B., 2008, OF-08-18 Climax Quadrangle Geologic Map, Lake and Park Counties, Colorado: Open File Reports, scale 1:24,000.
McCalpin, J.P., Temple, J., Sicard, K., Mendel, D., and Ahmad, B., 2012b, OF-12-09 Climax Quadrangle Geologic Map, Lake and Park Counties, Colorado: Open File Reports, scale 1:24,000.
Miller, A.E., 1977, MS-03 Geology of Moffat County, Colorado: Map Series, scale 1:126,720.
Miller, A.E., and Bowes, W.A., 1975, MS-01 Geologic, Energy and Mineral Resource Maps of Routt County, Colorado: Map Series, scale 1:126,720.
Morgan, M.L., 1999, RS-37 Geology and Mineral Resources of Gunnison County (Plate 1 only): Resource Series.
Morgan, M.L., 2008, Colorado’s earthquakes and known, young faults, scale 1,150,000.
Morgan, M.L., 2009a, Geologic map of the Elizabeth quadrangle,Elbert County, Colorado: Open-File Report, scale 1:24,000.
Morgan, M.L., 2009b, OF-09-03 Geologic Map of the Elizabeth Quadrangle, Elbert County, Colorado: Open File Report, scale 1:24,000.
Morgan, M.L., 2013a, Geologic Hazards of the High Park Fire Burn Area, Colorado, scale Digital.
Morgan, M.L., 2013b, Surficial Geology with Mudslides and Landslide and Rockfall Susceptibility Map of Colorado Springs and the Waldo Canyon Burn Area, scale Digital.
Morgan, M.L., 2014a, OF-14-01 Geologic Map of the Cabin Gulch Quadrangle, Elbert County, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., 2014b, OF-14-07 Geologic Map of the Cabin Gulch Quadrangle, Elbert County, Colorado., scale 1:24,000.
Morgan, M.L., 2014c, OF-14-07 Geologic Map of the Watkins SE Quadrangle, Arapahoe and Elbert Counties, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., 2015, OF-15-12 Geologic Map of the Piney Creek Quadrangle, Arapahoe, Douglas, and Elbert Counties, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., and Barkmann, P.E., 2011, Geologic map of the Eastonville quadrangle, El Paso County, Colorado: Open-file Report, scale 1:24,000.
Morgan, M.L., and Barkmann, P.E., 2012, OF-12-03 Eastonville Quadrangle Geologic Map, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., Barkmann, P.E., and Keller, S.M., 2012a, Geologic map of the Elbert quadrangle, Elbert County,Colorado: Open-file Report, scale 1:24,000.
Morgan, M.L., Barkmann, P.E., and Keller, S.M., 2012b, OF-12-04 Elbert Quadrangle Geologic Map, Elbert and El Paso Counties, Colorado: Open File Report, scale 1:24,000.
Morgan, M.L., Barkmann, P.E., Rodgers, E.L., and Noe, D.C., 2014, OF-14-12 Geologic Map of the Craig Quadrangle, Moffat County, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., and Billmeyer, E., 2010, OF-10-03 Geologic Map of the Severy Creek Watershed, Teller and El Paso Counties, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., and Fitzgerald, F.S., 2019, ON-001 Colorado Earthquake and Fault Map, scale (variable) online map.
Morgan, M.L., Fitzgerald, F.S., and Morgan, K.S., 2013a, Preliminary Survey of Debris Flow, Landslide, and Rockfall Deposits as a result of the September 11-14, 2013 Flooding Events, Boulder County, Colorado, scale Digital.
Morgan, M.L., Fitzgerald, F.S., and Morgan, K.S., 2013b, Preliminary Survey of Debris Flow, Landslide, and Rockfall Deposits as a result of the September 11-14, 2013 Flooding Events, Larimer County, Colorado.
Morgan, M.L., Matthews, V., and Heerschap, L., 2012c, Colorado Earthquake Map Server, scale Digital.
Morgan, M.L., McHarge, J.L., and Barkmann, P.E., 2005, Geologic map of the Sedalia quadrangle, Douglas County,Colorado: Open-file Report, scale 1:24,000.
Morgan, M.L., McHarge, J., and Barkmann, P.E., 2006a, OF-05-06 Geologic Map of the Sedalia Quadrangle, Douglas County, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., Noe, D.C., and Keller, S.M., 2007, OF-07-01 Geologic Map of the Olathe Quadrangle, Delta and Montrose Counties, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., Noe, D.C., White, J.L., and Townley, S.M., 2008, OF-08-02 Geologic Map of the Delta Quadrangle, Delta and Montrose Counties, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., Siddoway, C.S., Rowley, P.D., Temple, J., Keller, J.W., Archuleta, B.H., and Himmelreich, Jr., J.W., 2003, OF-03-18 Geologic Map of the Cascade Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., Temple, J., Grizzell, M.T., and Barkmann, P.E., 2004a, Geologic map of the Dawson Butte quadrangle,Douglas County, Colorado: Open-file Report, scale 1:24,000.
Morgan, M.L., Temple, J., Grizzell, M., and Barkmann, P.E., 2004b, OF-04-07 Geologic Map of the Dawson Butte Quadrangle, Douglas County, Colorado: Open File Report, scale 1:24,000.
Morgan, M.L., Temple, J., and Martin, D., 2006b, OF-06-05 Geologic Map of the Mt. Pittsburg Quadrangle, El Paso, Fremont, and Teller Counties, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., and White, J.L., 2012, OF-12-05 Falcon Quadrangle Geologic Map, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Morgan, M.L., and White, J.L., 2016, OF-16-02 Geologic Map of the Watkins Quadrangle, Arapahoe and Adams Counties, Colorado: Open File Reports, scale 1:24,000.
Murray, D.K., 1976, MS-06 Energy Resource Development Map of Colorado: Map Series, scale 1:500,000.
Myers, D.A., Sharps, J.A., Murray, D.K., Jones, D.C., and Pearl, R.H., 1977, MI-13 Energy Resources Map of Colorado: Miscellaneous Investigations.
Noe, D.C., 2015, OF-15-07 Geologic Map of the Paonia Quadrangle, Delta County, Colorado: Open File Report, scale 1:24,000.
Noe, D.C., Barkmann, P.E., McCall, K.J., Zawaski, M.J., Logan, Z.D., and Hosler, D.R., 2015a, OF-15-05 Geologic Map of the Hayden Quadrangle, Routt County, Colorado: Open File Reports, scale 1:24,000.
Noe, D.C., Busacca, A., and Zawaski, M.J., 2013a, OF-13-04 Milner Quadrangle Geologic Map, Routt County, Colorado: Open File Report, scale 1:24,000.
Noe, D.C., and Klink, A.T., 2015, OF-15-06 Geologic Map of the Crawford Quadrangle, Delta and Montrose Counties, Colorado: Open File Report, scale 1:24,000.
Noe, D.C., Logan, Z.D., McCall, K.J., and Warden, G.W., 2015b, OF-15-08 Geologic Map of the Lazear Quadrangle, Delta County, Colorado: Open File Report, scale 1:24,000.
Noe, D.C., Morgan, M.L., Keller, S.M., and Hanson, Paul R., 2007, OF-07-02 Geologic Map of the Montrose East Quadrangle, Montrose County, Colorado: Open File Reports, scale 1:24,000.
Noe, D.C., Morgan, M.L., and Townley, S.M., 2013b, OF-13-07 Geologic Map of the Olathe Northwest Quadrangle, Delta and Montrose Counties, Colorado: Open File Reports, scale 1:24,000.
Noe, D.C., and Rodgers, E.L., 2014, OF-14-15 Geologic Map of the Hotchkiss Quadrangle Delta County, Colorado: Open File Reports, scale 1:24,000.
Noe, D.C., White, J.L., and Nelson, M., 2015c, OF-15-09 Geologic Map of the North Delta Quadrangle, Delta County, Colorado: Open File Reports, scale 1:24,000.
Noe, D.C., and Zawaski, M.J., 2013, OF-13-05 Geologic Map of the Orchard City Quadrangle, Delta County, Colorado: Open File Reports, scale 1:24,000.
Noe, D.C., Zawaski, M.J., Logan, Z.D., and Hosler, D.R., 2013c, OF-13-01 Geologic Map of the Hayden Gulch Quadrangle, Routt County, Colorado: Open File Report, scale 1:24,000.
Nuccio, V.F., and Johnson, R.C., 1988, MI-33 Surface Vitrinite-Reflectance Map of the Uinta, Piceance, and Eagle Basins Area, Utah and Colorado: Miscellaneous Investigations, scale 1:500,000.
OF-18-04 Geologic Map of the Florence Quadrangle, Fremont County, Colorado, 2020,: Open File Report, scale 1:24,000.
OF-18-05 Geologic Map of the Antero Reservoir NE Quadrangle, Park County, Colorado, 2020,: Open File Report, scale 1:24,000.
OF-19-06 Geologic Map of the Quadrangle, Counties, Colorado, 2019,: Open File Report, scale 1:24,000.
OF-19-02 Geologic Map of the Gowanda Quadrangle, Weld County, Colorado, 2020,: Open File Report, scale 1:24,000.
OF-19-04 Geologic Map of the Grouse Mountain Quadrangle, Eagle County, Colorado, 2020,: Open File Report, scale 1:24,000.
OF-19-05 Geologic Map of the Hells Kitchen Quadrangle, Delta and Mesa Counties, Colorado, 2020,: Open File Report, scale 1:24,000.
Palkovic, M.J., Lindsey, K.O., and Morgan, M.L., 2018, OF-18-02 Geologic Map of the Milliken Quadrangle, Weld County, Colorado: Open File Report, scale 1:24,000.
Palkovic, M.J., Lindsey, K.O., and Morgan, M.L., 2020, OF-19-03 Geologic Map of the La Salle Quadrangle, Weld County, Colorado: Open File Report, scale 1:24,000.
Palkovic, M.J., and Morgan, M.L., 2017, OF-17-02 Geologic Map of the Johnstown Quadrangle, Larimer and Weld Counties, Colorado: Open File Report, scale 1:24,000.
Pearl, R.H., 1974, MI-14 Colorado Stratgraphic Nomenclature Correlation Chart: Miscellaneous Investigations.
Pearl, R.H., 1980, MS-14 Geothermal Resources of Colorado: Map Series, scale 1:500,000.
Price, J.N., 1977, OF-77-02 Geology for Land-Use Planning Horn Peak Quadrangle, Custer County, Colorado: Open File Reports, scale 1:24,000.
Price, J.N., 1978, MS-07 Geology for Land-Use Planning in the Craig Area: Map Series, scale 1:12,700.
Price, J.N., 1980, OF-80-06 Geology of Land-Use Planning in the Green Mountain Reservoir Area, Summit County, Colorado: Open File Report, scale 1:24,000.
Raynolds, R.G., and Hagadorn, J.W., 2017, MS-53 Colorado Stratigraphy Chart: Map Series, scale Variable.
Repplier, F.N., and Fargo, R.L., 1981, MS-20 Geothermal Gradient Map of Colorado: Map Series, scale 1:500,000.
Repplier, F.N., Healy, F.C., Collins, D.B., and Longmire, P.A., 1980, MS-16 Atlas of Ground Water Quality in Colorado: Map Series, scale Variable.
Repplier, F.N., Rell, M.M., and Columbia, R.K., 1981, MS-21 Groundwater Temperatures Map of Colorado: Map Series, scale 1:500,000.
Rowley, P.D., Himmelreich, Jr., J.W., Kupfer, D.H., and Siddoway, C.S., 2003, OF-02-05 Geologic Map of the Cheyenne Mountain Quadrangle, El Paso County, Colorado: Open File Report, scale 1:24,000.
Rushworth, P., Kelso, B.S., and Ladwig, L.R., 1983, MS-23 Map, Directory, and Statistics of Permitted Colorado Coal Mines, 1983: Map Series, scale 1:500,000.
Scanlon, A.H., 1983, MS-22 Oil and Gas Fields Map of Colorado, 1983: Map Series, scale 1:500,000.
Schwochow, S.D., 1981, MS-17 Inventory of Nonmetallic Mining and Processing Operations in Colorado: Map Series, scale variable.
Scott, L., 2017, OF-16-03 Colorado Rocky Mountain Front Profiles: Open File Report.
Scroggs, D.L., 1975a, OF-75-01 Slope Map of the Craig Area, Moffat County, Colorado: Open File Reports, scale 12,000.
Scroggs, D.L., 1975b, OF-75-06 Slope Map of the Meeker Area Rio Blanco County, Colorado: Open File Reports, scale 1:24,000.
Shannon, J.R., and McCalpin, J.P., 2006, OF-06-10 Geologic Map of the Maysville Quadrangle, Chaffee County, Colorado: Open File Report, scale 1:24,000.
Smith, J.R., Tremain, C.M., and Brchan, C.A., 1991, MS-26 Oil and Gas Fields Map of Colorado: Map Series, scale 1:500,000.
Soule, J.M., 1975a, OF-75-05 Idaho Springs, Clear Creek County, Colorado, Area Geologic Hazards Map: Open File Report, scale 1:10,600.
Soule, J.M., 1975b, MS-04 Geologic Hazards Map, Dolores, Montezuma County, Colorado: Map Series, scale 1:10,000.
Soule, J.M., 1978, OF-78-05 Geologic Hazards in Douglas County, Colorado: Open File Reports, scale 1:24,000.
Soule, J.M., 1986, OF-86-06 Vega Reservoir Access Road and Vicinity — Assessment of Landslide Hazards and Related Problems: Open File Report.
Soule, J.M., 1988, OF-88-01 Surficial-Geologic and Landslide Map of Vega Reservoir and Vicinity, Mesa County, Colorado: Open File Report, scale 1:24,000.
Stork, A., Coogan, J.C., Csar, A., and Wentz, R., 2006, OF-06-04 Geologic Map of the Gunnison Quadrangle, Gunnison County, Colorado: Open File Report, scale 1:24,000.
Stork, A., Coogan, J.C., Fillmore, R., Brunkal, H., Nicolette, J., and Payton, A., 2007, OF-07-03 Geologic Map of the Signal Peak Quadrangle, Gunnison County, Colorado: Open File Reports, scale 1:24,000.
Stover, B.K., 1992, MS-27 Surficial Geology and Geologic Hazards of the Douglas Bass-Baxter Pass Region, Rio Blanco and Garfield Counties, Colorado: Map Series, scale 1:50,000.
Streufert, R.K., 1999, OF-99-07 Geologic Map of the Mount Sopris Quadrangle, Garfield and Pitkin Counties, Colorado: Open File Reports, scale 1:24,000.
Streufert, R.K., 2008, MS-41 Geologic Map of the Mount Sopris Quadrangle, Garfield and Pitkin Counties, Colorado: Map Series, scale 1:24,000.
Streufert, R.K., and Cappa, J.A., 1994, MS-28 Location Map and Descriptions of Metal Occurrences in Colorado with Notes on Economic Potential: Map Series, scale 1:500,000.
Streufert, R.K., Kirkham, R.M., Schroeder II, T.J., and Widmann, B.L., 1997a, OF-97-02 Geologic Map of the Dotsero Quadrangle, Eagle and Garfield Counties, Colorado: Open File Report, scale 1:24,000.
Streufert, R.K., Kirkham, R.M., Schroeder II, T.J., and Widmann, B.L., 2009, OF-08-14 Geologic Map of the Dotsero Quadrangle, Garfield and Eagle Counties, Colorado: Open File Report, scale 1:24,000.
Streufert, R.K., Kirkham, R.M., Widmann, B.L., and Schroeder II, T.J., 1997b, OF-97-04 Geologic Map of the Cottonwood Pass Quadrangle, Eagle and Garfield Counties, Colorado: Open File Report, scale 1:24,000.
Streufert, R.K., Kirkham, R.M., Widmann, B., and Schroeder II, T.J., 2008a, MS-37 Geologic Map of the Cottonwood Pass Quadrangle, Eagle and Garfield Counties, Colorado: Map Series, scale 1:24,000.
Streufert, R.K., and Ohl, J.P., 1989, MS-25 Colorado Metal Mining Activity Map with Directory: Map Series, scale 1:500,000.
Streufert, R.K., Widmann, B.L., and Kirkham, R.M., 1998, OF-98-01 Geologic Map of the Basalt Quadrangle, Eagle, Garfield, and Pitkin Counties, Colorado: Open File Report, scale 1:24,000.
Streufert, R.K., Widmann, B.L., and Kirkham, R.M., 2008b, MS-39 Geologic Map of the Basalt Quadrangle, Eagle, Garfield, and Pitkin Counties, Colorado: Map Series, scale 1:24,000.
Temple, J., and Busacca, A., 2009, OF-09-02 Geologic Map of the Divide Quadrangle, Teller County, Colorado: Open File Report, scale 1:24,000.
Temple, J., Busacca, A., Mendel, D., and Sicard, K., 2008, OF-08-16 Geologic Map of the Dakan Mountain Quadrangle, Douglas, Teller, and El Paso Counties, Colorado: Open File Report, scale 1:24,000.
Temple, J., Madole, R.F., Keller, J.W., and Martin, D., 2007, OF-07-07 Geologic Map of the Mount Deception Quadrangle, Teller and El Paso Counties, Colorado: Open File Report, scale 1:24,000.
Thorson, J.P., 2003a, Geologic map of the Black Forest quadrangle, El Paso County, Colorado: Colorado Geological Survey Open-file Report, scale 1:24,000.
Thorson, J.P., 2003b, OF-03-06 Geologic Map of the Black Forest Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Thorson, J.P., 2003c, OF-03-09 Geologic Map of the Greenland Quadrangle, Douglas and El Paso Counties, Colorado: Open File Reports, scale 1:24,000.
Thorson, J.P., 2004a, Geologic map of the Castle Rock South quadrangle, Douglas County, Colorado: Colorado Geological Survey Open-file Report, scale 1:24,000.
Thorson, J.P., 2004b, Geologic map of the Cherry Valley School quadrangle, Elbert, Douglas, and El Paso Counties, Colorado: Colorado Geological Survey Open-file Report, scale 1:24,000.
Thorson, J.P., 2004c, OF-04-05 Geologic Map of the Castle Rock South Quadrangle, Douglas County, Colorado: Open File Report, scale 1:24,000.
Thorson, J.P., 2004d, OF-04-06 Geologic Map of the Cherry Valley School Quadrangle, Elbert, Douglas, and El Paso Counties, Colorado: Open File Report, scale 1:24,000.
Thorson, J.P., 2005a, Geologic map of the Castle Rock North quadrangle, Douglas County, Colorado: Colorado Geological Survey Open-file Report, scale 1:24,000.
Thorson, J.P., 2005b, OF-05-02 Geologic Map of the Castle Rock North Quadrangle, Douglas County, Colorado: Open File Report, scale 1:24,000.
Thorson, J.P., 2005c, OF-05-07 Geologic Map of the East Half of the Larkspur Quadrangle, Douglas and El Paso Counties, Colorado: Open File Report, scale 1:24,000.
Thorson, J.P., 2006a, Geologic map of the Russellville Gulch quadrangle, Douglas County, Colorado: Colorado Geological Survey Open-file Report, scale 1:24,000.
Thorson, J.P., 2006b, OF-06-08 Geologic Map of the Russellville Gulch Quadrangle, Douglas and Elbert Counties, Colorado: Open File Report, scale 1:24,000.
Thorson, J.P., 2007, OF-07-04 Geologic Map of the Ponderosa Park Quadrangle, Douglas and Elbert Counties, Colorado: Open File Reports, scale 1:24,000.
Thorson, J.P., Carroll, C.J., and Morgan, M.L., 2001, OF-01-03 Geologic Map of the Pikeview Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Thorson, J.P., and Madole, R.F., 2003, OF-02-04 Geologic Map of the Monument Quadrangle, El Paso County, Colorado: Open File Reports, scale 1:24,000.
Thorson, J.P., Temple, J., Busacca, A., and Berg, W., 2008, OF-08-17 Geologic Map of the Larkspur Quadrangle, Douglas and El Paso Counties, Colorado: Open File Report, scale 1:24,000.
Topper, R.E., and Wilson, J.C., 2003, SP-53 Ground Water Atlas of Colorado: Special Publication.
Tremain, C.M., 1983, MS-19 The Coal Bed Methane Resources of Colorado: Map Series, scale 1:500,000.
Tweto, O., 1979, MI-16 Geologic Map of Colorado: Miscellaneous Investigations, scale 1:500,000.
Wallace, C.A., Cappa, J.A., and Lawson, A.D., 1997, OF-97-06 Geologic Map of the Salida East Quadrangle, Chaffee and Fremont Counties, Colorado: Open File Report, scale 1:24,000.
Wallace, C.A., Cappa, J.A., and Lawson, A.D., 1999, OF-99-03 Geologic Map of the Gribbles Park Quadrangle, Park and Fremont Counties, Colorado: Open File Report, scale 1:24,000.
Wallace, C.A., and Keller, J.W., 2003, OF-01-01 Geologic Map of the Castle Rock Gulch Quadrangle, Chaffee and Park Counties, Colorado: Open File Reports, scale 1:24,000.
Wallace, C.A., Keller, J.W., McCalpin, J.P., Bartos, P.J., Route, E.E., Jones, N.N., Gutierrez, F., Williams, C.L., and Morgan, M.L., 2003, OF-02-07 Geologic Map of the Breckenridge Quadrangle, Summit and Park Counties, Colorado: Open File Reports, scale 1:24,000.
Wallace, C.A., and Lawson, A.D., 1998, OF-98-04 Geologic Map of the Cameron Mountain, Quadrangle, Chaffee, Park, and Fremont Counties, Colorado: Open File Report, scale 1:24,000.
Wallace, C.A., and Lawson, A.D., 2008, OF-08-12 Geologic Map of the Cameron Mountain, Quadrangle, Chaffee, Park, and Fremont Counties, Colorado: Open File Report, scale 1:24,000.
White, J.L., 2002, MS-34 Collapsible Soils and Evaporite Karst Hazards Map of the Roaring Fork River Corridor, Garfield, Eagle, and Pitkin Counties, Colorado: Map Series, scale 1:50,000.
White, J.L., 2008, MS-47 Collapsible Soil Susceptibility Map of the Colorado River Corridor in the Vicinity of Rifle, Garfield County, Colorado: Map Series, scale 1:50,000.
White, J.L., 2012a, Colorado map of potential evaporite dissolution and evaporite karst subsidence hazards, scale 1:500,000.
White, J.L., 2012b, OF-12-02 Colorado Map of Potential Evaporite Dissolution and Evaporite Karst Subsidence Hazards: Open File Reports, scale 1:24,000.
White, J.L., 2014a, OF-14-05 Geologic Map of the Corcoran Point Quadrangle, Mesa County, Colorado: Open File Reports, scale 1:24,000.
White, J.L., 2014b, OF-14-13 Geologic hazards derivative map of the Whitewater quadrangle, Mesa County, Colorado: Open File Reports, scale 1:24,000.
White, J.L., and Hodge, J., 2013, OF-13-03 Meeker Quadrangle Geologic Map, Rio Blanco County, Colorado: Open File Reports, scale 1:24,000.
White, J.L., Hodge, J., and Zawaski, M.J., 2013, OF-13-06 Geologic Map of the Rattlesnake Mesa Quadrangle, Rio Blanco County, Colorado: Open File Reports, scale 1:24,000.
White, J.L., Lindsey, K.O., Morgan, M.L., and Mahan, S.A., 2017, OF-17-05 Geologic Map of the Fountain Quadrangle, El Paso County, Colorado: Open File Report, scale 1:24,000.
White, J.L., Livaccari, R.F., Hodge, J., and Nelson, M., 2015, OF-15-14 Geologic Map of the Mack Quadrangle, Mesa County, Colorado: Open File Reports, scale 1:24,000.
White, J.L., MacLean, R., and Carroll, C.J., 2014, OF-14-09 Geologic Map of the Whitewater Quadrangle, Mesa County, Colorado: Open File Reports, scale 1:24,000.
White, J.L., and Morgan, M.L., 2012a, Collapsible soil susceptibility map viewer, scale Digital.
White, J.L., and Morgan, M.L., 2012b, Colorado mapped landslide inventory, scale Digital.
White, J.L., and Palkovic, M.J., 2019, OF-18-03 Geologic Map of the Lands End Quadrangle, Mesa County, Colorado: Open File Report, scale 1:24,000.
White, J.L., and Wait, T.C., 2003, MS-42 Colorado Springs Landslide Susceptibility Map, El Paso County, Colorado: Map Series, scale 1:24,000.
White, J.L., and Warden, G., 2013, OF-13-02 Geologic Map of the L07 Hill Quadrangle, Rio Blanco County, Colorado: Open File Report, scale 1:24,000.
White, J.L., Wilson, F., Morgan, M.L., and Townley, S.M., 2008, OF-08-03 Geologic Map of the Hoovers Corner Quadrangle, Montrose County, Colorado: Open File Reports, scale 1:24,000.
Widmann, B.L., Bartos, P.J., Madole, R.F., Barbá, K.E., and Moll, M.E., 2004, OF-04-03 Geologic Map of the Alma Quadrangle, Park and Summit Counties, Colorado: Open File Reports, scale 1:24,000.
Widmann, B., Bartos, P.J., McCalpin, J.P., and Jackson, J., 2003, OF-03-20 Geologic Map of the Copper Mountain Quadrangle, Summit, Eagle, Lake, and Park Counties, Colorado: Open File Reports, scale 1:24,000.
Widmann, B.L., Kirkham, R.M., and Beach, S.T., 2000, OF-00-02 Geologic Map of the Idaho Springs Quadrangle, Clear Creek County, Colorado: Open File Reports, scale 1:24,000.
Widmann, B.L., Kirkham, R.M., Houck, K.J., and Lindsay, N.R., 2007, OF-06-07 Geologic Map of the Fairplay West Quadrangle, Park County, Colorado: Open File Reports, scale 1:24,000.
Widmann, B.L., Kirkham, R.M., Houck, K.J., and Lindsay, N.R., 2011, OF-11-04 Geologic Map of the Jones Hill Quadrangle, Park County, Colorado: Open File Reports, scale 1:24,000.
Widmann, B.L., Kirkham, R.M., Keller, J.W., Poppert, J.T., and Price, J.B., 2005, OF-05-04 Geologic Map of the Como Quadrangle, Park County, Colorado: Open File Report, scale 1:24,000.
Widmann, B.L., Kirkham, R.M., and Rogers, W.P., 1998, OF-98-08 Preliminary Quaternary Fault and Fold Map and Database of Colorado, scale 1:500,000.
Widmann, B.L., and Miersemann, U., 2001, OF-01-05 Geologic Map of the Georgetown Quadrangle, Clear Creek County, Colorado: Open File Reports, scale 1:24,000.
Widmann, B.L., Morgan, M.L., Bartos, P.J., Shaver, K.C., Gutiérrez, F., and Lockman, A., 2002, OF-02-03 Geologic Map of the Keystone Quadrangle, Summit County, Colorado: Open File Reports, scale 1:24,000.
Wray, L.L., Apeland, A.D., Hemborg, H.T., and Brchan, C.A., 2002, MS-33 Oil and Gas Fields Map of Colorado: Map Series, scale 1:500,000.
Wray, L.L., Apeland, A.D., Hemborg, H.T., Brchan, C., Morgan, M.L., and Young, G.B.C., 2005, Shapefiles for the 2002 Oil and Gas Fields Map of Colorado: Open-File Reports, scale Digital.
Wray, L.L., Streufert, R.K., and Morgan, M.L., 2000, OF-00-18 Late Cretaceous Fruitland Formation geologic mapping, outcrop measured sections, and subsurface stratigraphic cross sections, northern La Plata county, Colorado: Open File Reports.
Zacharakis, T.G., 1981, MS-18 Revised Heat Flow Map of Colorado: Map Series, scale 1:500,000.
Zietz, I., and Kirby.Jr., J.R., 1972, MI-23 Aeromagnetic Map of Colorado: Miscellaneous Investigations, scale 1:500,000.
USGS MapView — a resource of the NGMDB featuring most available geologic maps of the entire US.