An astronaut onboard the International Space Station (ISS) shot this photograph of two neighboring stratovolcanoes on Java, the most populated island of Indonesia. Mount Sundoro and Mount Sumbing are two symmetrical, cone-shaped peaks in Central Java province that are part of a larger east to west chain of volcanoes. Both peaks rise more than 3,000 meters (10,000 feet) above sea level and are still active, though they have not erupted since 1730 (Sumbing) and 1971 (Sundoro).

The brighter zones encircling the bases of both volcanoes include areas of intensive agriculture; these contrast with the dark forests on the higher slopes. The peaks of Sumbing and Sundoro rise high enough that the rocky summits elevations reach above the tree line.

The rich volcanic soils surrounding the peaks are very fertile, providing productive farmland in this region of Central Java. The tropical climate of Indonesia also provides abundant rain and sunlight. The area’s main crop is rice, grown in irrigated fields. Other lowland crops include corn, sugarcane, and coffee.



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This service is provided by the International Space Station program and the JSC Earth Science & Remote Sensing Unit, ARES Division, Exploration Integration Science Directorate.
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