Place
- Tennessee9
- Albion River Watershed (Calif.)8
- Bakersfield, California, United States8
- Block Island Sound (R.I.)8
- Blue Hill Bay (Me.)8
- Ipswich Bay (Mass.)8
- Jasper Ridge Biological Preserve (Calif.)8
- Minnesota, United States8
- Mongolia8
- Nova Scotia, Canada8
- Woodside (Calif.)8
- Humboldt County (Calif.)7
- Inyo County (Calif.)7
- Maine, United States7
- North Dakota, United States7
- Noyo River (Calif.)7
- Noyo River Watershed (Calif.)7
- San Benito County (Calif.)7
- British Columbia, Canada6
- Massachusetts, United States6