OF-05-03 Geologic Map of the Southern Half of the Culebra Peak Quadrangle OF-05-03 Geologic Map of the Southern Half of the Culebra Peak Quadrangle, Costilla and Las Animas Counties, Colorado
OF-03-03 Evaluation of Mineral and Mineral Fuel Potential of Las Animas County State Mineral Lands Administered by the Colorado State Land Board (detail) OF-03-03 Evaluation of Mineral and Mineral Fuel Potential of Las Animas County State Mineral Lands Administered by the Colorado State Land Board
RS-33 Spanish Peak Field RS-33 Spanish Peak Field, Las Animas County, Colorado: Geologic Setting and Early Development of a Coalbed Methane Reservoir in the Central Raton Basin
SP-40 Dinosaur Lake: The Story of the Purgatoire Valley Dinosaur Tracksite Area SP-40 Dinosaur Lake: The Story of the Purgatoire Valley Dinosaur Tracksite Area
OF-96-04-28 Tertiary Igneous Rocks and Laramide Structure and Stratigraphy of the Spanish Peaks Region OF-96-04-28 Tertiary Igneous Rocks and Laramide Structure and Stratigraphy of the Spanish Peaks Region, South-Central Colorado: Road Log and Descriptions from Walsenburg to La Veta
OF-95-01 1992-1993 Low Temperature Geothermal Assessment Program OF-95-01 1992-1993 Low Temperature Geothermal Assessment Program, Colorado
MS-15 Map and Discovery of Permitted Colorado Coal Mines MS-15 Map and Discovery of Permitted Colorado Coal Mines, 1981
OF-80-04 Coal Bed Methane Potential of the Raton Mesa Coal Region OF-80-04 Coal Bed Methane Potential of the Raton Mesa Coal Region, Raton Basin, Colorado