Global Volcanism Program | Image GVP-07841
Volcán Santo Tomás is a large eroded stratovolcano seen here to the east across the valley of the Río Samalá from the Zunil geothermal site. The summit of Volcán de Zunil is 4.5 km to the NE. Geothermal fields are located on the NW Santo Tomás flank and 3 km north along the ridge to the Zunil summit.
Photo by Bill Rose, 1981 (Michigan Technological University).