Collection place
- Gaan Libah, Somalia1 objects
- Gabon23 objects
- Gallinas Valley, Marin County, California3 objects
- Galt-Lodi, San Joaquin County, California1 objects
- Gap Creek Springs, Western Australia4 objects
- Garden Point, Melville Island, Australia3 objects
- Garden Valley, Lincoln County, Nevada3 objects
- Genesee County, New York1 objects
- Georgia (state)125 objects
- Germany4 objects
- Giant’s Causeway, Northern Ireland1 objects
- Gifford-Schenck 20, Tulare County, California2 objects
- Gila County, Arizona2 objects
- Gillem Bluff, Siskiyou County, California18 objects
- Gipsformerei, Staatliche Museen zu Berlin, Germany4 objects
- Glaser Lakes, Lower Klamath Lake, Siskiyou County4 objects
- Glass Mountain, Barro area, Napa Valley2 objects
- Glass Mountain, Siskiyou County, California6 objects
- Glencove, Solano County, California12 objects
- Glenn County, California1 objects