Global Volcanism Program | Image GVP-02771
Two overlapping craters at the summit of Mount Rainier are viewed here from the NE in 1995. They are both about 400 m across and represent more recent activity after the collapse 5,600 years ago. Thermal activity formed a series of fumaroles and ice caves within the icecap filling the summit craters.
Photo by Dave Wieprecht, 1995 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.