| COTOPAXI | Active volcano in the Andes (8) |
| MTEREBUS | Southernmost active volcano in the world ... or a cryptic hint to certain squares in this puzzle |
| MAUNALOA | Hawaii Island's 'Long Mountain'; the largest active volcano in the world (5,3) |
| OJOSDELSALADO | Earth's highest active volcano, in the Andes on the Argentina-Chile border; Spanish, 'Eyes of Salt' (4,3,6) |
| TRONADOR | Thoroughfare going around north in rocky hill or volcano in the Andes (8) |
| NYIRAGONGO | Active volcano in the Virunga Mountains of east-central Africa. In 2002 the city of Goma was largely destroyed by its lava, leaving more than 100,000 people homeless and creating a refugee crisis. (10 |
| TAAL | Active volcano in The Philippines on the island of Luzon |
| ANDES | Home to the highest active volcano in the world |
| IRAZU | Active volcano, in the Cordillera Central, east-central Costa Rica. Its name originates from the indigenous word for "thunder." (5) |
| EREBUS | Southernmost active volcano in the world (5,6) |
| MOUNT | Southernmost active volcano in the world (5,6) |
| LASSEN | ___ Peak (active volcano in the Cascades) |
| MOUNTLASSEN | Southernmost active volcano in the Cascade Range |
| RAINIER | Active volcano in the US state of Washington, Mount ... |
| STROMBOLI | Active volcano in the Lipari Islands off north coast of Sicily (9) |
| MOUNTETNA | Go up summits of Everest, Trivor, Nuptse and one of the most active volcanos in the world (5,4) |
| PINATUBO | Mount ___ , volcano in the Philippines that erupted in 1991 (8) |
| OSORNO | Active Chilean volcano in the Andes similar in appearance to Mount Fuji (6) |
| ANTISANA | Volcano in the Ecuadoran Andes |
| ELMISTI | Dormant volcano in the Andes |
