Region
Colorado
Gunnison County
5
Park County
4
Saguache County
3
Uncompahgre Plateau
3
Chaffee County
2
Custer County
2
Fremont County
2
Mesa County
2
Montrose County
2
Sangre de Cristo Mountains (Colo. and N.M.)
2
Teller County
2
Uncompahgre Plateau (Colo.)
2
Utah
2
Wyoming
2
Animas Mining District (Colo.)
1
Aspen
1
Boulder County
1
Burlington Mine (Colo.)
1
Carbon County
1
Crestone Park Area
1
Cumberland Pass area
1
Denver
1
Denver (Colo.)
1
Difficulty Creek Region
1
Dolores County
1
Eagle County
1
Grand County
1
Grand Junction
1
Green Mountain Mine (Colo.)
1
Gunnison River
1
Huerfano County
1
Italian Mountain (Gunnison County)
1
Jamestown (Colo.)
1
Jamestown Region
1
Lake City area
1
Larimer County
1
Mesaverde Group
1
Moffat County
1
Ouray County
1
Paradox Basin
1
Piceance Creek Basin
1
Piceance Creek Basin (Colo.)
1
Rio Blanco County
1
San Juan County
1
San Juan Mountains (Colo. and N.M.)
1
San Miguel County
1
South Park
1
South Platte River Watershed (Colo. and Neb.)
1
Tallahassee Creek Region
1
more ...