| Guaichane-Mamuta(noun, name, volcano, geology) |
| Heise volcanic field(expression, name, volcano, geology) |
| Hell's Half Acre Lava Field(expression, name, volcano, geology) |
| Henry's Fork Caldera(expression, name, volcano, geology) |
| Hohentwiel(noun, name, volcano, geology) |
| Huckleberry Ridge Tuff(expression, name, volcano, geology) |
| Itcha Range(expression, name, volcano, geology) |
| Jotabeche(noun, name, volcano, geology) |
| Juan de la Vega(expression, name, volcano, geology) |
| Kari-Kari(noun, name, volcano, geology) |
| King Island Pluton(expression, name, volcano, geology) |
| La Hoyada volcanic complex(expression, name, volcano, geology) |
| Laguna Escondida(expression, name, volcano, geology) |
| Lanzarote(noun, name, volcano, geology) |
| Lauca(noun, name, volcano, geology) |
| Laysan(noun, name, volcano, geology) |
| Leon Muerto(expression, name, volcano, geology) |
| Level Mountain(expression, name, volcano, geology) |
| Level Mountain Range(expression, name, volcano, geology) |
| Lisianski Island(expression, name, volcano, geology) |