| Purace(noun, name, volcano, geology) |
| Quill(noun, expression, name, volcano, geology) |
| Resago(noun, name, volcano, geology) |
| Reventador(noun, name, volcano, geology) |
| Romeral(noun, name, volcano, geology) |
| Rudakov(noun, name, volcano, geology) |
| San Borja volcanic field(expression, name, volcano, geology) |
| Sangay(noun, name, volcano, geology) |
| Shishel(noun, name, volcano, geology) |
| Snegovoy(noun, name, volcano, geology) |
| Soda Lakes(expression, name, volcano, geology) |
| Spectrum Range(expression, name, volcano, geology) |
| Taunshits(noun, name, volcano, geology) |
| Tigre(noun, name, volcano, geology) |
| Tilocalar(noun, name, volcano, geology) |
| Tindfjallajokull(noun, name, volcano, geology) |
| Titila(noun, name, volcano, geology) |
| Tolbachik(noun, name, volcano, geology) |
| Tolmachev Dol(expression, name, volcano, geology) |
| Tri Sestry(expression, name, volcano, geology) |