Global Volcanism Program | Image GVP-04088
Steaming San Cristóbal volcano rises to the WNW beyond the rim of La Ollada, the 1-km-wide crater of Casita volcano. Fumarole activity along the northern wall of La Ollada has persisted since the early 16th century and does not exceed a temperature of 100 degrees Centigrade. This photo was taken from the summit of Casita volcano.
Photo by Alain Creusot-Eon, 1975 (courtesy of Jaime Incer).