Collection place
- Sacaton, Pinal County, Arizona1 objects
- Sacramento County, California2,728 objects
- Sacramento River, Sacramento County, California3 objects
- Sacramento, Sacramento County, California166 objects
- Salado Creek, Bell County, Texas1 objects
- Salado Site, San Carlos Reservation, Gila County1 objects
- Salinas Valley, Monterey County, California4 objects
- Saline Valley, Inyo County, California2 objects
- Salmon Creek area, Sonoma County, California2 objects
- Salmon River Canyon, Twin Falls County, Idaho22 objects
- Salt Springs area, San Bernardino County, California36 objects
- Salt Springs, San Bernardino County, California4 objects
- Salt Springs, Tooele County, Utah41 objects
- Sambio, Namibia1 objects
- San Benito (community), San Benito County, California1 objects
- San Benito County, California2 objects
- San Bernardino County, California179 objects
- San Bernardino Mountains, Riverside County, California1 objects
- San Bruno, San Mateo County, California2 objects
- San Carlos Reservation, Gila County, Arizona1 objects