Global Volcanism Program | Image GVP-03021

Forked Butte scoria cone in the foreground formed about 6,500 years ago south of Mount Jefferson, whose flank appears to the right. A lava flow from the southern base of Forked Butte traveled 8 km to the west down Cabot Creek. Photo by Dan Miller, 1977 (U.S. Geological Survey).

Forked Butte scoria cone in the foreground formed about 6,500 years ago south of Mount Jefferson, whose flank appears to the right. A lava flow from the southern base of Forked Butte traveled 8 km to the west down Cabot Creek.

Photo by Dan Miller, 1977 (U.S. Geological Survey).

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Keywords: scoria cone

Jefferson