December 13, 2021
OF-19-02 Geologic Map of the Gowanda Quadrangle, Weld County, Colorado
Extending previous CGS mapping efforts along the Front Range region of the state, this publication describes the geology of this…
Search
December 7, 2021
OF-21-04 Geologic Map of the Hardin Quadrangle, Weld County, Colorado
The purpose of this report is to describe the geology, geologic resources and geologic hazards of this 7.5-minute quadrangle located…
Geology
June 3, 2021
New GIS data and maps
For those of you who are subscribers to the CGS announcement list, we want to direct your attention to a…
Geology
April 26, 2021
Recent STATEMAP quadrangles
The CGS actively participates in the STATEMAP portion of…
March 17, 2021
ON-007-03M Mineral Resource Potential Derivative (Map)
Mineral resource potential derivative maps were generated using 7.5 minute quadrangles published under the CGS STATEMAP geological mapping program.
March 4, 2021
ON-010-02M Colorado Statewide Alluvial Aquifer (Map)
This GIS map is of alluvial deposits along streams and rivers throughout Colorado that have the potential for forming alluvial…
March 4, 2021
ON-010M Colorado Groundwater Atlas (Map) – v20210304
This map is comprised of statewide GIS data compiled as of 04 March 2021. Online GIS resource. ON-010M (Note: “Add…
February 22, 2021
OF-19-05 Geologic Map of the Hells Kitchen Quadrangle, Delta and Mesa Counties, Colorado
The purpose of this publication is to describe the geology, geologic resources, and geologic hazards of this 7.5-minute quadrangle. It…
February 15, 2021
ON-B-40M Radioactive Mineral Occurrences of Colorado and Bibliography (Map)
The data comprising this GIS map was digitized in 2020 and is a partial compilation of the 1978 CGS publication…
February 4, 2021
OF-20-05 Geologic Map of the Greeley Quadrangle, Weld County, Colorado
Continuing our ongoing mapping efforts along the Front Range Urban Corridor region of the state, this…
February 1, 2021
OF-20-03 Geologic Map of the Bracewell Quadrangle, Weld County, Colorado
The purpose of this report is to describe the geology, geologic resources and geologic hazards of this 7.5-minute quadrangle located…
November 12, 2020
ON-007-08M Historic Metal Mining Districts of Colorado (Map) – v20201112
This GIS map contains the most current information for this project and is comprised of GIS data and written documentation…
Geology
September 9, 2020
Recent STATEMAP quadrangles
The CGS actively participates in the STATEMAP portion of…
August 12, 2020
OF-19-10 Landslide Inventory and Susceptibility Map of Teller County, Colorado
This CGS study 1) evaluates and maps known and previously unmapped landslide deposits with the aid of new high-resolution light…
June 8, 2020
OF-18-05 Geologic Map of the Antero Reservoir NE Quadrangle, Park County, Colorado
Adding to our coverage of the South Park region in the central Rocky Mountains of Colorado,…
May 23, 2020
OF-18-04 Geologic Map of the Florence Quadrangle, Fremont County, Colorado
The purpose of this map is to describe the geology, mineral and ground-water resource potential, and geologic hazards of this…
May 18, 2020
OF-19-08 Geologic Map of the Mesa Lakes Quadrangle, Mesa and Delta Counties, Colorado
The purpose of this map is to describe the geology, mineral and ground-water resource potential, and geologic hazards of this…
Geology
April 24, 2020
OF-19-03 Geologic Map of the La Salle Quadrangle, Weld County, Colorado
As we continue to expand geological mapping coverage of Colorado, we recently uploaded another of our…
February 14, 2020
ON-008-04M U.S. Forest Service Abandoned Mine Land Inventory Project – Colorado (Map) – v20210214
This is the most current GIS map for this project and is comprised of GIS data as of 03 June…
February 6, 2020
OF-19-03 Geologic Map of the La Salle Quadrangle, Weld County, Colorado
The purpose of this map is to describe the geology, mineral and ground-water resource potential, and geologic hazards of this…
January 8, 2020
OF-18-03 Geologic Map of the Lands End Quadrangle, Mesa County, Colorado
Extending previous CGS mapping efforts on the Grand Mesa in the Western Slope region the state, this publication describes the…
General
October 21, 2019
GIS Data and Web Map Portal
GIS Data :: Web Maps NOTE: All our GIS maps should be functioning properly now. If you…
Geology
October 11, 2019
Statemap
Statemap Intro Advisory Committee Maps STATEMAP is a competitive, matching-funds grant program between the state geological surveys and the…
Geology
October 11, 2019
Geologic Mapping
Geologic Mapping Intro GIS LiDAR Publications Links / Resources Geologic mapping involves plotting the location and attitude of the various…
August 1, 2019
ON-001 Colorado Earthquake and Fault Map
Updated with the most recent field research, this fully online ON-001 Colorado Earthquake and Fault Map…
June 13, 2019
OF-19-06 Landslide Inventory and Susceptibility Map of Boulder County, Colorado
This CGS study seeks to 1) evaluate and map known and previously unmapped landslide deposits with the aid of new…
December 20, 2018
OF-18-02 Geologic Map of the Milliken Quadrangle, Weld County, Colorado
Extending previous CGS mapping efforts along the Front Range region the state, this publication describes the geology of this 7.5-minute…
December 15, 2018
OF-18-11 Debris Flow Susceptibility Map of El Paso County, Colorado
This map is intended for use by planners and regulators to support review of site-specific geologic hazard reports submitted for…
December 10, 2018
OF-18-10 Debris Flow Susceptibility Map of Jefferson County, Colorado
This map is intended for use by planners and regulators to support review of site-specific geologic hazard reports submitted for…
December 5, 2018
OF-18-01 Geologic Map of the Frederick Quadrangle, Weld and Broomfield Counties, Colorado
Extending previous CGS mapping efforts along the Front Range region of the state, this publication describes the geology of this…