- Rai Coast District, Madang Province, Papua New Guinea3 objects
- Rajasthan, India8 objects
- Rayón, Chiapas, Mexico2 objects
- Redwood Valley, Mendocino County, California1 objects
- Republic of Benin2 objects
- Republic of Botswana3 objects
- Republic of South Africa4 objects
- Republic of the Congo3 objects
- Rich Gulch, Calaveras County, California4 objects
- Riverside County, California3 objects
- Rosebud Reservation, Todd County, South Dakota2 objects
- Round Valley, Mendocino County, California33 objects