Collection place
- Mono County, California4 objects
- Mono Lake, Mono County, California4 objects
- Monroe County, New York2 objects
- Montana2 objects
- Mount Carmel, Israel3 objects
- Mount Shasta, Siskiyou County, California2 objects
- Nevada2 objects
- New Delhi, Delhi State, India3 objects
- New Mexico47 objects
- New Orleans, Louisiana1 objects
- New York state2 objects
- Nigeria6 objects
- Nile River Valley, Egypt24 objects
- North America1,045 objects
- North Central California322 objects
- North Central California Coast13 objects
- North Chincha Island, Chincha Islands, Peru2 objects
- Northeastern Arizona94 objects
- Northeastern California77 objects
- Northeastern New Mexico14 objects