Global Volcanism Program | Image GVP-00525
The ridge in the background of this photo is part of the wall of a caldera that contains Sibayak and Pinto volcanoes. The lower slope of Sibayak rises at the far right above the caldera floor, which is occupied by villages and agricultural land.
Photo by Tom Casadevall, 1987 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.