Global Volcanism Program | Image GVP-02379
The Dvoinoi (Sugar) geyser is one of nearly 30 found in the "Valley of Geysers," a major geothermal area along a 4-km-long valley near the eastern margin of the Geysernaya caldera at Kamchatka's Uzon volcano. High heat flux near the eastern ring faults of the caldera produces active geysers, boiling hot springs, and mud pools.
Photo by Sakharnii (courtesy of Oleg Volynets, Institute of Volcanology, Petropavlovsk).
This image is made available under the Creative Commons BY-NC 4.0 license terms.