Collection place
- Rarotonga Island, Southern Cook Islands, Cook Islands24
- Ras Beirut, Lebanon11
- Ras Kelb, Lebanon60
- Rastenberg, Lower Austria7
- Rat Islands, Central Aleutians, Aleutians West Borough57
- Ratak Chain, Marshall Islands, Micronesia3
- Rathmans field, Linn County, Western Oregon1
- Rattlesnake Bridge (historical), El Dorado County, California2
- Rattlesnake Canyon, Mineral County, Nevada2
- Ratzeburg, Schleswig-Holstein, Germany2
- Ravenna, Emilia-Romagna, Northeast Italy17
- Ravenshoe, Queensland, Australia1
- Ravensthorpe, Western Australia1
- Ravine of Nazca, Nazca Valley, Nazca Province12
- Rawat Fort, Pakistan2
- Raxaul, Bihar, India3
- Ray, Pinal County, Arizona17
- Rayón, Chiapas, Mexico82
- Razavi Khorasan Province, Northeast Iran34
- Recco, Liguria, Italy4