Region
California
25
Utah
9
Arizona
7
Colorado
6
Idaho
6
New Mexico
4
United States
4
Montana
3
San Joaquin Valley
3
West (U.S.)
3
Alaska
2
Coast Range
2
Coast Ranges
2
Colorado River Region (Colo.-Mexico)
2
Delmarva Peninsula
2
Mediterranean Region
2
Monterey County
2
Nevada
2
North America
2
Rocky Mountains
2
Sangre de Cristo Mountains (Colo. and N.M.)
2
Santa Maria Basin
2
Texas
2
Trans-Pecos (Tex. and N.M.)
2
Antarctica
1
Arctic Ocean
1
Argentina
1
Asia
1
Atlantic Coast
1
Atlantic Coast (U.S.)
1
Australia
1
Barstow Region
1
Blackfoot Region
1
Blue Mountains Region (Or. and Wash.)
1
Bonneville, Lake
1
Cache County
1
California, Southern
1
Chelan County
1
China
1
Churchill County
1
Colorado Plateau
1
Custer County
1
Death Valley Region (Calif. and Nev.)
1
Devils Postpile National Monument Region
1
Feather River Region
1
Fisher Valley
1
Flagstaff Region
1
Fox Mountain (Nye County)
1
Franciscan Complex (Calif.)
1
Fresno County
1
more ...