Global Volcanism Program | Image GVP-07795
Tacaná is located on the México/Guatemala border at the far NW end of the Central American volcanic belt. It is seen here from the Guatemalan side of the border to the ENE, where it rises steeply above a 9-km-wide caldera surrounded by deeply eroded plutonic rocks. Historical activity has included mild phreatic eruptions, but stronger explosive activity and production of pyroclastic flows occurred earlier.
Photo by Bill Rose, 1986 (Michigan Technological University).