Mount Bachelor, SW of Bend, Oregon, is seen here from the north with a neoglacial moraine in the center. No known summit eruptions have occurred during the Holocene, although it was active until the latest Pleistocene and a N-flank vent produced a series of lava flows immediately preceding the eruption of the Mazama ash about 7,700 years ago.

Photo by Willie Scott, 1981 (U.S. Geological Survey).

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

Keywords: stratovolcano

Bachelor