Incapillo is part of the Andean Central Volcanic Zone, which extends through the countries of Chile, Bolivia, and Argentina and includes six or more Quaternary caldera or ignimbrite systems, about 44 stratovolcanoes, and over 18 smaller centres. One of these stratovolcanoes, Ojos del Salado, is the world's highest volcano. This zone also includes the Altiplano-Puna volcanic complex and the Galan caldera farther south. Incapillo is the southernmost volcano of the Central Volcanic Zone with Pleistocene activity; the next such volcano to the south is Tupungato in the Southern Volcanic Zone at 33° southern latitude.