- North America249 objects
- The Americas✖Remove constraint Collection place: The Americas249 objects
- United States249 objects
- California247 objects
- San Francisco Bay Area, California126 objects
- Northern California117 objects
- Lindsey Slough, Solano County, California80 objects
- Solano County, California80 objects
- CA-Sol-2, Solano County, California73 objects
- North Central California67 objects
- Sacramento County, California46 objects
- Humboldt County coast, Humboldt County, California45 objects
- Humboldt County, California45 objects
- Northwestern California45 objects
- CA-Hum-169 (Tsurai), Humboldt County, California42 objects
- Trinidad Bay, Humboldt County, California42 objects
- Trinidad, Humboldt County, California42 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California39 objects
- CA-Sac-6, Sacramento County, California39 objects
- Marin County, California21 objects