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Global Volcanism Program | Image GVP-07608

Cerro la Isla is the largest of a series of post-caldera lava domes extruded along a NE-SW-trending line within Coatepeque caldera.  The summit of this 916-m-high dome, also known as Cerro Grande or Isla de Cabra (Goat Island), contains a shallow depression.  The rhyodacitic dome, seen here from the southern caldera rim, rises about 90 m above the lake surface and about 180 m above the lake floor. Photo by Paul Kimberly, 1999 (Smithsonian Institution).

Cerro la Isla is the largest of a series of post-caldera lava domes extruded along a NE-SW-trending line within Coatepeque caldera. The summit of this 916-m-high dome, also known as Cerro Grande or Isla de Cabra (Goat Island), contains a shallow depression. The rhyodacitic dome, seen here from the southern caldera rim, rises about 90 m above the lake surface and about 180 m above the lake floor.

Photo by Paul Kimberly, 1999 (Smithsonian Institution).


Coatepeque Caldera