Region
California
Nevada
46
San Bernardino County
42
San Francisco Bay Area
37
United States
37
San Francisco Bay
36
Oregon
31
West (U.S.)
31
San Joaquin Valley
29
San Francisco
25
Arizona
20
Riverside County
18
Mexico
17
Los Angeles
16
San Francisco (Calif.)
16
Inyo County
14
Scott River Watershed
14
Loma Prieta
13
Shasta River
13
Baja California (Mexico : Peninsula)
12
Los Angeles Region
12
New Mexico
12
Pacific Coast
12
Siskiyou County
10
Los Angeles County
9
San Andreas Fault (Calif.)
9
Santa Barbara County
9
Alaska
8
Golden Gate National Recreation Area (Calif.)
8
Presidio of San Francisco (Calif.)
8
San Luis Obispo County
8
San Mateo County
8
Alameda County
7
Central Valley (Valley)
7
Kern County
7
Lassen County
7
Los Padres National Forest
7
Mono County
7
Parkfield Region
7
San Diego County
7
Shasta River Watershed
7
Southwest, New
7
Cajon Pass
6
California, Southern
6
Contra Costa County
6
Delta Region
6
Edwards Air Force Base
6
Humboldt County
6
Northridge (Los Angeles)
6
Sacramento River
6
more ...