- North America✖Remove constraint Collection place: North America660 objects
- The Americas660 objects
- United States613 objects
- California374 objects
- Northern California226 objects
- Northwestern United States182 objects
- Northwestern California177 objects
- Alaska117 objects
- Humboldt County, California102 objects
- San Francisco Bay Area, California98 objects
- Klamath River, Humboldt County, California64 objects
- Northwest Coast, United States56 objects
- CA-CCo-138, Oakley, Contra Costa County40 objects
- Contra Costa County, California40 objects
- Oakley, Contra Costa County, California40 objects
- San Francisco County, California40 objects
- San Francisco, San Francisco County, California40 objects
- San Francisco Waterfront, San Francisco, San Francisco County38 objects
- Interior Alaska35 objects
- Yukon-Koyukuk Census Area, Alaska35 objects