Global Volcanism Program | Image GVP-02373
The Lake Dalny maar formed about 7,600-7,700 years ago in the the northern area of Uzon caldera. Tephra deposits from this eruption are found within 5 km from the lake. The 1-km-wide maar is surrounded by a 60-m-high tephra ring that forms the flat slope on the far side of the lake. The northern wall of Uzon caldera rises behind it.
Photo by Dan Miller, 1990 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.