- North America✖Remove constraint Collection place: North America17 objects
- The Americas17 objects
- United States17 objects
- Mercer County, New Jersey10 objects
- New Jersey10 objects
- Northeastern United States10 objects
- California6 objects
- NJ-NL-1, New Jersey6 objects
- Northern California5 objects
- Northwestern California4 objects
- Humboldt County, California3 objects
- Trenton, Mercer County, New Jersey3 objects
- CA-Hum-112, Humboldt County, California2 objects
- Humboldt Bay, Humboldt County, California2 objects
- South Spit, Humboldt Bay, Humboldt County2 objects
- CA-Nap-39 (Tulukai site), Napa Valley, Napa County1 objects
- CA-SJo-154, San Joaquin County, California1 objects
- Central Oregon1 objects
- Edinburg, Mercer County, New Jersey1 objects
- Klamath County, Oregon1 objects