Mount Tehama (also called Brokeoff Volcano) is an eroded andesitic stratovolcano located in the Shasta Cascade part of the Cascade Volcanic Arc and the Cascade Range in Northern California. Part of the Lassen volcanic center, its highest remaining remnant, Brokeoff Mountain, is itself the second highest peak in Lassen Volcanic National Park and connects to the park's highest point, Lassen Peak. Located on the border of Tehama County and Shasta Co...
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Mount Tehama (also called Brokeoff Volcano) is an eroded andesitic stratovolcano located in the Shasta Cascade part of the Cascade Volcanic Arc and the Cascade Range in Northern California. Part of the Lassen volcanic center, its highest remaining remnant, Brokeoff Mountain, is itself the second highest peak in Lassen Volcanic National Park and connects to the park's highest point, Lassen Peak. Located on the border of Tehama County and Shasta County, Tehama's peak is the highest point in the former. The few hikers that summit this mountain each year are treated to amazing views of Lassen Peak, the Central Valley of California, and many of the park's other features. On clear days Mount Shasta can also be seen in the distance.
Tehama started life some 600,000 years ago. At its peak, it would have reached approximately 3,350 meters (10,991 ft) high, with a diameter at the base of approximately 12 kilometers. Volcanic activity then declined 400,000 years ago, with other volcanic lava...
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