Collection place
- Oceania32 objects
- Okayama Prefecture, San'yo region Chugoku region1 objects
- Okinawa Prefecture, Kyushu, Japan6 objects
- Old Cariboo, Plumas County, California2 objects
- Olympic Peninsula, Western Washington1 objects
- Oregon20 objects
- Osa, Okayama Prefecture, San'yo region1 objects
- Owens Valley, Inyo County, California1 objects