Region
California
San Joaquin Valley
31
San Bernardino County
20
Nevada
18
Santa Barbara County
16
Mojave River Watershed
11
Riverside County
9
San Diego County
9
Kern County
8
Arizona
7
Sacramento Valley
7
Central Valley (Valley)
6
Coachella Valley
6
Morongo Valley
6
Inyo County
5
Owens Valley
5
San Joaquin Valley (Calif.)
5
Fort Irwin
4
Imperial County
4
Merced County
4
Santa Barbara
4
Santa Clara River Valley
4
Shasta County
4
Tehama County
4
Antelope Valley
3
Edwards Air Force Base
3
Fresno County
3
Indian Wells Valley
3
Lassen County
3
Los Angeles County
3
Monterey Bay
3
Monterey County
3
Pajaro River Valley
3
Salinas River Valley
3
San Francisco Bay Area
3
San Joaquin County
3
Santa Maria Valley (Santa Barbara County)
3
Tulare County
3
Twentynine Palms
3
Washoe County
3
Yuma County
3
California, Northern
2
California, Southern
2
Central Valley
2
Chowchilla
2
Colorado River Valley (Colo.-Mexico)
2
Imperial Valley (Calif. and Mexico)
2
Inyo County (Calif.)
2
Lompoc Region
2
Long Beach-Santa Ana Region
2
more ...