Global Volcanism Program | Image GVP-08222
This drill rig on the floor of El Valle de Antón caldera is part of a major geothermal exploration program at El Valle volcano. In the background to the north is Cerro Gaital, the highest of three post-caldera lava domes along the northern caldera rim.
Photo by Paul Kimberly, 1998 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.
Galleries: Geothermal Features