Domuyo, Stratovolcano in Neuquén Province, Argentina

Domuyo is a stratovolcano in the Cordillera del Viento, northern Neuquén Province, Argentina, reaching 4,702 m and the highest mountain in Patagonia. It has a 15 km wide caldera holding at least 14 dacite lava domes, with five more outside it. Its western slopes carry fumaroles, hot springs and geysers; the upper slopes and summit are often under cloud.

The sources document no recorded first ascent or dated climbing history for Domuyo. Its name comes from Mapuche, meaning "to tremble and grumble", probably because of the geothermal activity. Neuquén's tourism office classes it as a hill with volcanic activity and thermal manifestations rather than a volcano, since it lacks a central chimney.

Domuyo comes from Mapuche: "to tremble and grumble", a name tied to the mountain's geothermal activity. The Neuquén tourism office calls it a hill with volcanic activity and thermal manifestations rather than a volcano, since it lacks a central chimney. Its flanks hold numerous solfataras, hot springs and geysers.

To reach this place, follow National Route 40 from Chos Malal to Provincial Route 43, keeping in mind that road conditions vary by season. Summer months offer the best visiting conditions when snow and ice are less of a concern.

Domuyo's summit is not a volcanic cone: the mountain has no central chimney, and the 15 km wide caldera holds at least 14 dacite lava domes, with five more outside it. Its western slopes carry numerous solfataras, hot springs and geysers. From the top, climbers see the Copahue, Antuco, Sierra Velluda, Nevados de Chillán and Tromen volcanoes, plus the Campanario and Sierra Nevada hills.