Mineral resources of Colorado. Digital PDF download. MI-01D
This large publication has become a classic and well known reference book for those interested in Colorado’s historic mining districts and mineral resources. It is organized into three parts, I) metals, non-metals, and fuels; II) summaries of mining districts and mineral deposits; and III) investigation of strategic mineral resources. In Part I: For the metals (gold, silver, lead, and zinc), these are arranged alphabetically by county and then mining district. For the non-metals, these are arranged alphabetically by type. Similarly, the nonmetallic minerals and fuels are also arranged alphabetically. Part II is organized primarily along the Front Range and then central Colorado. There is also a section on vanadium, fluorspar, and pegmatites. Part III presents results of mine examinations that were tied to critical minerals needed for the successful prosecution of World War II. These are listed by alphabetically by county and then mine or mill name.