The Old Hundred Gold Mine is a gold mine

Gold mining

Gold mining is the removal of gold from the ground. There are several techniques and processes by which gold may be extracted from the earth.-History:...

 in San Juan County, Colorado

San Juan County, Colorado

San Juan County is the least populous of the 64 counties of the state of Colorado in the United States. The county name is the Spanish language name for “Saint John”, the name Spanish explorers gave to a river and the mountain range in the area. The county population was 558 at U.S. Census 2000...

, United States. The mine is about five miles east of Silverton, Colorado

Silverton, Colorado

The town of Silverton is a Statutory Town that is the county seat of, and the only incorporated municipality in, San Juan County, Colorado, United States. Silverton is a former silver mining camp, most or all of which is now included in a federally designated National Historic Landmark District,...

, near the ghost town of Howardsville

Howardsville, Colorado

Howardsville is an unincorporated community in San Juan County, Colorado, United States, along the Animas River at the mouth of Cunningham Creek...

. The property is no longer mined, but is open for tours in the summer.

High on the mountain above the main entrance is the former boarding house for the miners. The boardinghouse structure was stabilized against collapse by preservation efforts funded by the Colorado State Historical Fund.