Region
Wyoming
19
United States
13
Colorado
10
Montana
10
Appalachian Basin
9
New Mexico
8
Utah
7
California
5
Alaska
4
Powder River Basin (Wyo. and Mont.)
4
Bernalillo County
3
North Atlantic Ocean
3
Oklahoma
3
Pacific Ocean
3
Sandoval County
3
Torrance County
3
Valencia County
3
Arizona
2
Atlantic Coast (U.S.)
2
Custer County
2
Fremont County
2
Indian Ocean
2
Kansas
2
Mexico
2
Nevada
2
Oregon
2
Powder River County
2
San Miguel County
2
Santa Fe County
2
Socorro County
2
South Dakota
2
Southwest, New
2
Southwestern States
2
Teton County
2
Washington (State)
2
Wind River Basin (Wyo.)
2
Alaska, Gulf of
1
Appalachian Region
1
Arkansas
1
Arkansas River Valley
1
Atlantic Ocean
1
Baltimore Canyon
1
Bighorn Basin (Mont. and Wyo.)
1
Black Hills (S.D. and Wyo.)
1
Blytheville Region
1
Campbell County
1
Central Valley
1
Clark County
1
Colfax County
1
Diablo, Mount
1
more ...