“Mining district” typically refers to a distinct region or area with definable geographic boundaries that contains mineral deposits that are either geologically or spatially related. One of the best-known examples of a mining district in Wyoming is the South Pass-Atlantic City district, which encompasses dozens of historic mines and prospects that were targeting similar mineralization hosted in very similar geology. Historic metallic mining districts can be found in almost every mountain range in Wyoming – some of which are still active today. Read more about these by clicking on the links for each range, or by using the dropdown at the top menu bar.

For more information on Wyoming’s mining districts, see the Mining History of Geology of Some of Wyoming’s Metal and Gemstone Districts and Deposits. Our interactive Mineral Resources of Wyoming map also has a layer showing WSGS reports and studies on our mining districts.