| Snowshoe Lava Field(expression, name, field, volcanology) |
| Squamish volcanic field(expression, name, volcano, geology) |
| Steamboat Springs(expression, name, volcano, geology) |
| Tenerife(noun, name, volcano, geology) |
| Thumb(noun, name, volcano, geology) |
| Ticsani(noun, name, volcano, geology) |
| Timeline of volcanism on Earth(expression, name, volcano, geology) |
| Toba catastrophe theory(expression, name, volcano, geology) |
| Tricouni Southwest(expression, name, volcano, geology) |
| Tronador(noun, name, volcano, geology) |
| Tuya Range(expression, name, volcano, geology) |
| Uinkaret volcanic field(expression, name, volcano, geology) |
| Viedma(noun, name, volcano, geology) |
| Volcanic Eifel(expression, name, volcano, geology) |
| Wapi Lava Field(expression, name, field, volcanology) |
| White River Ash(expression, name, volcanology, ash) |
| Wolverine Formation(expression, name, volcano, geology) |
| Yucamane(noun, name, volcano, geology) |
| Zuni-Bandera volcanic field(expression, name, volcano, geology) |
| Cenozoic volcano(expression, volcano, geology, history) |