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Global Volcanism Program | Image GVP-03021

Forked Butte cinder cone in the foreground was formed about 6500 years ago south of Mount Jefferson, whose slopes appear at 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 cinder cone in the foreground was formed about 6500 years ago south of Mount Jefferson, whose slopes appear at 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).


Jefferson