Seventeen plates and text of locations of pits, quarries, and industrial minerals operations and processing plants of nonmetallic mining in Colorado. Covers: Vernal, Grand Junction, Moab, Cortez, Craig, Leadville, Montrose, Durango, Greeley, Denver, Pueblo, Trinidad, Sterling, Limon, Lamar, La Junta, Front Range Corridor and Southwest Pueblo. 39 pages. 17 plates (1:250,000 and 1:100,000). Digital PDF download. MS-17D
From the Introduction:
Under its legislated duty to “inventory and analyze the state’s mineral resources as to quantity, chemical composition, physical properties, location, and possible use,” the Colorado Geological Survey in 1975 began a series of statewide mine and resource inventories that now includes coal, oil and gas, geothermal, uranium, thorium, and vanadium, with other metallics in progress. As the latest in this series, Map Series 17 shows the distribution and types of construction material and industrial mineral mining operations, collectively known as the nonfuel nonmetallics. Processing and manufacturing facilities have been added as ancillary activities.
Besides their “basic-data” contribution, the maps should help demonstrate 1) the amazing variety of nonmetals that have been mined in Colorado, 2) the very widespread distribution of these operations compared to metallics and fuels, and 3) the interrelationship of construction materials production, transportation routes, and centers of growth and population.