Volcano

A volcano is a one-tile geographical feature on some worlds.

When not forming in large mountain biomes, volcanoes tend to form around small - even a tile's worth or smaller - mountain biomes (or the other way around)

Some worlds may contains no volcanoes. Some claim they are "really hard to find".

Note that, like other landforms, volcanoes can be hidden in the embark menu in the World, Regional and even Local map if a settlement was built on or around it. Ways to find such "hidden" volcanoes may be Legends Viewer or alternate maps present in Legends Mode.