Santa Maria Volcano, Guatemala

The interior of a stratovolcano is dramatically revealed in a 1-km wide crater created on the SW flank of Guatemala's Santa Maria volcano during an eruption in 1902.

The 1200-m-high wall exposes thin, light-colored lava flows that are interbedded with deposits of fragmental material produced during growth of the volcano.

The 1902 eruption, the first in historical time at Santa Maria, was one of the world's largest during the 20th century.

PHOTO SOURCE: Dick Stoiber 1969 Dartmouth Collge, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.

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