Global Volcanism Program | Image GVP-00413
Ruapehu volcano, seen here from the south, forms a massif composed of at least four overlapping volcanic edifices. Located at the southern end of the Taupo volcanic zone, it contains an active crater lake near the summit. Phreatic explosions have produced mudflows that have affected ski areas on the upper flanks and river valleys below the volcano.
Photo by Bruce Houghton, 1980 (Wairakei Research Center).