Augusta Tabor
Avalanche
Breckenridge Historic District
California Gulch Superfund Site
Established by the US Environmental Protection Agency (EPA) in 1983, the California Gulch Superfund Site encompasses about eighteen square miles in central Lake County, including the city of Leadville. One of the nation’s first Superfund sites, it was…
Cardinal Mill
Located about two miles west of Nederland in western Boulder County, the Cardinal Mill processed gold, silver, and tungsten ore from its parent mine, the Boulder County Tunnel, as well as other local mines between 1902 and 1942. The Cardinal Mill was an…
Chaffee County
Georgetown–Silver Plume Historic District
Hanging Flume
Leadville Strike of 1880
Matchless Mine
Precious Metal Mining in Colorado
San Juan County
San Miguel County
Shenandoah-Dives Mill
Shenandoah-Dives Mining Company
The Shenandoah-Dives Mining Company was active in the San Juan Mountains from the 1930s through the 1960s. As one of the largest mining operations in the region during the twentieth century, the company’s history exemplifies the boom and bust cycles and…
Teller County
Vulcan Mine Explosions
Between 1896 and 1918, the Vulcan Mine in Garfield County exploded three times, killing a total of eighty-five workers. The successive blasts prompted action from labor unions and politicians to make coal mines safer. At the site of the Vulcan Mine today…