ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Mount Semeru. Steam rising from the volcanic peak (3676 metres elevation) of the active Semeru stratovolcano. Stratovolcanoes are made up of alternating layers of lava and rubble, and typically have a smooth conical shape. Photographed in the Bromo-Tengger-Semeru National Park, Java, Indonesia.
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