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).