Region
Alaska
22
Alaska, Northwest
1
Albany County
2
Arabian Peninsula
1
Arapaho National Forest
1
Arizona
5
Arkansas
3
Arkansas City
1
Ascutney Mountain (Vt.)
1
Australia
1
Avery County
1
Bannock County
1
Beaver County
2
Bexar County
1
Big Horn County
2
Bingham
1
Blackfeet Indian Reservation (Mont.)
1
Boise County
1
Broadwater County
1
Burke County
1
Caldwell County
1
California
18
California, Southern
1
Canada
5
Canyonlands National Park
1
Canyonlands National Park (Utah)
1
Carbon County
5
Carbon County (Wyo.)
1
Carter County
1
Cascade Range
1
Cataract Canyon Wilderness
1
Cataract Canyon Wilderness (Utah)
1
Central City Region
1
Challis National Forest
2
Challis National Forest (Idaho)
1
Chicora Quadrangle
1
China
2
Clallam County
1
Clark County
2
Clear Creek County
1
Colfax County
1
Colorado
26
Connecticut
1
Costa Rica
1
Crescent Valley
1
Custer County
1
Dome region
1
Duluth Complex
1
Eagle Mountains
1
Emery County
1
more ...