Three Sisters (Oregon)
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The Three Sisters are closely spaced volcanic peaks in the U.S. state of Oregon. They are part of the Cascade Volcanic Arc, a segment of the Cascade Range in western North America extending from south
The Three Sisters, looking north
Aerial view over the Three Sisters Wilderness, showing Middle Sister (left) and South Sister
Carver Lake is dammed by a glacial moraine and could produce a dangerous lahar.
Rock Mesa is an example of a rhyolite dome near the Three Sisters. South Sister rises in the background.
Mount Bachelor
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Mount Bachelor, formerly named Bachelor Butte, is a dormant stratovolcano atop a shield volcano in the Cascade Volcanic Arc and the Cascade Range of central Oregon, United States. Named Mount Bachelor
Three Sisters (Oregon)
…Sisters region includes nearby peaks such as Belknap Crater, Mount Washington, Black Butte, and Three Fingered Jack to the north, and Broken Top and Mount Bachelor to the south. Most of the surrounding volcanoes consist of mafic (basaltic) lavas; only South and Middle Sister have an abundance of silicic rocks such…
Mount Bachelor from the Cascade Lakes Scenic Byway (east of the mountain)
Mount Bachelor from Little Lava Lake (southwest of the mountain)
The chair lift to Mount Bachelor's summit, as seen in 1986