| Prindle Volcano(expression, name, volcano, north) |
| Pyramid(noun, name, volcano, north) |
| Quaternary volcanism(expression, volcano, geology, history) |
| Ridge Cone(expression, name, volcano, north) |
| Rosebud Creek(expression, name, volcano, north) |
| Royal Society Range(expression, volcano, geology, history) |
| Ruby Mountain(expression, name, volcano, north) |
| San Pietro Island(expression, volcano, geology, history) |
| Saucer(noun, name, volcano, north) |
| Seconed Canyon Cone(expression, name, volcano, north) |
| Sezill Volcano(expression, name, volcano, north) |
| Sheep Track Pumice(expression, name, volcano, north) |
| Sidas Cone(expression, name, volcano, north) |
| Sixty Mile(expression, name, volcano, north) |
| Sleet Cone(expression, name, volcano, north) |
| Snippaker Creek Cone(expression, name, volcano, north) |
| Snowshoe Lava Field(expression, name, volcano, north) |
| Source Hill(expression, name, volcano, north) |
| South Tuya(expression, name, volcano, north) |
| Spectrum Dome(expression, name, volcano, north) |