- North America134 objects
- The Americas134 objects
- Great Plains, North America111 objects
- Central Plains, Great Plains, North America83 objects
- United States23 objects
- Northwestern United States22 objects
- Washington state20 objects
- Western Washington20 objects
- Chehalis County, Washington16 objects
- Southern Plains, Great Plains, North America5 objects
- Puget Sound, Western Washington4 objects
- Alaska2 objects
- Alaskan Interior, Unknown Borough, Alaska1 objects
- Eastern United States1 objects
- Northeastern United States1 objects
- Unknown Borough, Alaska1 objects