Global Volcanism Program | Image GVP-07505
The Sierra La Primavera complex has been the site of extensive geothermal development. The drill rig here is at well PR-5, located near the center of the caldera just south of the Mesa El Nejahuete lava dome. Surface exposures in this location consist of tephra-rich lacustrine sediments.
Photo by Pat Dobson, 1982 (Lawrence Berkeley National Laboratory).
This image is made available under the Creative Commons BY-NC-ND 4.0 license terms.