Spanish Peak Field, Las Animas County, Colorado H. Thomas Hemborg Published: 1998 Total Pages: 44 Get eBook
Coal Resources of the Trinidad Coal Field in Huerfano and Las Animas Counties, Colorado Ross B. Johnson Published: 1961 Total Pages: 228 Get eBook
List of U.S. Geological Survey Geologic and Water-supply Reports and Maps for Colorado Geological Survey (U.S.) Published: 1987 Total Pages: 352 Get eBook
Geology of the Igneous Rocks of the Spanish Peaks Region, Colorado Ross B. Johnson Published: 1968 Total Pages: 60 Get eBook
Geological Survey Professional Paper Geological Survey (U.S.) Published: 1968 Total Pages: 520 Get eBook
Hydrology of Area 61, Northern Great Plains and Rocky Mountain Coal Provinces, Colorado and New Mexico P. O. Abbott Published: 1983 Total Pages: 112 Get eBook
Geology and Coal Resources of the Starkville-Weston Area, Las Animas County, Colorado Gordon Harry Wood Published: 1957 Total Pages: 92 Get eBook
