IS-45 Active Permitted Mine Operations in Colorado, 1996-1997

Lists coal, metal, gemstone, building stone and non-metallic mines, and sand and gravel operations. Includes locations on a state map and a directory by county with mine type and commodity. 58 pages. 1 plate (1:1,000,000). Digital PDF download. IS-45D

This directory provides historic information on active mines in 1996 to 1997 time frame. It was preceded by IS-41 Active Permitted Mine Operations in Colorado, 1995-96, and in turn was later expanded on IS-68 Directory of Active Mines and Mine Permits in Colorado, 2002.

Sources used to compile this data set include: a) The Colorado Division of Minerals and Geology (CDMG) database of permitted mines and quarries, which lists operations as active that are either in production, out of production and in a reclamation process, or in suspension; and b) Individual mine and quarry files in the offices of CDMG, which in some cases do not clearly reflect current status.

Coal, Energy, Industrial Minerals, Maps, Metals, Minerals

1990s, aggregates, CGS, coal, county, diamonds, DOI, download, energy, free, fuels, gemstone, IS-, limestone, metals, minerals, mining, pdf, publication, resources, statewide, uranium

Lawson, Allison D. “IS-45 Active Permitted Mine Operations in Colorado, 1996-97.” Mining. Information Series. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1998. https://doi.org/10.58783/cgs.is45.tmxx4183. CGS Publications. https://coloradogeologicalsurvey.org/publications/active-permitted-mine-operations-colorado-1997/.