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PLEASE NOTE: We no longer are able to accept any walk-in orders. All sales of our few remaining physical publications are now via our Amazon storefront. You will be redirected there when you select one of those publications. Please do not use the “Add to cart” button except on free items. All free digital downloads remain accessible on this site.
2023 Colorado Geology Calendar
Get your 2023 Colorado geology calendar while the supplies last! This compilation features many spectacular landscapes from across the state as captured by CGS staff.GEO-2023-01 Calendar
Publications on our Amazon Store
SP-57 Tourist Guide to Colorado Geology$12.00
IS-33 Gold Panning and Placering In Colorado: How and Where$12.00
SP-52 Messages in Stone: Colorado’s Colorful Geology (2nd Edition)$19.95
SP-43 A Guide to Swelling Soils for Colorado Homebuyers and Homeowners$9.00
SP-53 Ground Water Atlas of Colorado$30.00
SP-49 The Handbook of Colorado Meteorites$7.00
RS-28 Gold Occurrences of Colorado$14.00
Since the first CGS Bulletin A Preliminary Report on the Geology of the Monarch Mining District, Chafee County in 1910, the Survey has issued more than nine hundred professional reports, publications, maps, and GIS datasets concerning the geology, groundwater hydrology, mining, energy production, and geologic hazards around the state of Colorado.