| Salar Grande(expression, name, volcano, geology) |
| San Borja volcanic field(expression, name, volcano, geology) |
| Sar'akhor(noun, name, volcano, geology) |
| Satah Mountain(expression, name, volcano, geology) |
| Satah Mountain volcanic field(expression, name, volcano, geology) |
| Sezill Volcano(expression, name, volcano, geology) |
| Shoshone lava field(expression, name, volcano, geology) |
| Siletz River Volcanics(expression, name, volcano, geology) |
| Supervolcano(noun, name, volcano, geology) |
| Taos Plateau volcanic field(expression, name, volcano, geology) |
| Tsitsutl Peak(expression, name, volcano, geology) |
| Tutupaca(noun, name, volcano, geology) |
| Tweed Volcano(expression, name, volcano, geology) |
| Twin Falls volcanic field(expression, name, volcano, geology) |
| Ubinas(noun, name, volcano, geology) |
| Vogelsberg(noun, name, volcano, geology) |
| Wapi Lava Field(expression, name, volcano, geology) |
| Warrumbungles(noun, name, volcano, geology) |
| Whitetop Mountain(expression, name, volcano, geology) |
| Yellowstone Caldera(expression, name, volcano, geology) |