Global Volcanism Program | Image GVP-03200
The extensively eroded Sargents Ridge (right of center), on the south side of Mount Shasta, is a remnant of the oldest of four major edifices that were constructed following the collapse of ancestral Mount Shasta. The Sargents Ridge cone formed during the Pleistocene, less than 250,000 years ago. Mount Misery was constructed less than 130,000 years ago and forms much of the upper part of the cone above the Sargents Ridge cone.
Photo by Lee Siebert, 1981 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.