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PLEASE NOTE: We are no longer able to accept walk-in publication sales.
PLEASE ALSO NOTE: We are migrating the sale of our few remaining physical publications to Amazon as of October 2022. You will be redirected to our Amazon storefront when you select one of those publications. Some of them may not be immediately available, so please check back with us in the coming weeks. Please do not use the “Add to cart” button except on free items.
All free digital downloads remain accessible on this site.
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.