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Place
- Sonoma County (Calif.)67
- Mendocino County (Calif.)56
- Russian River Watershed (Calif.)47
- Pennsylvania, United States28
- West Branch Delaware River, Pennsylvania, United States26
- San Mateo County (Calif.)22
- Alameda County (Calif.)21
- Contra Costa County (Calif.)21
- Marin County (Calif.)21
- Napa County (Calif.)21
- San Francisco Bay Area (Calif.)21
- San Francisco County (Calif.)21
- Santa Clara County (Calif.)21
- Solano County (Calif.)21
- California, Northern17
- Indiana, United States16
- San Francisco Bay (Calif.)15
- Albion River Watershed (Calif.)7
- Arizona6
- Noyo River (Calif.)6