Small plumes rise to the lower right from a geothermal area on the southern flanks of Gunung Lawu at an elevation of 2,550 m. Erosion of hydrothermally altered rocks produces vegetation-free areas.

Photo by Dan Dzurisin, 1980 (U.S. Geological Survey).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Keywords: geothermal | hydrothermal alteration

Lawu