Global Volcanism Program | Image GVP-03018
The blocky Jefferson Creek lava flow in the foreground, which traveled 13 km down Jefferson and Candle Creeks from a unnamed cinder cone NE of Forked Butte, is younger than the nearby 6500-year-old Forked Butte lava flow. The two flows traveled down different drainages to join near this point. The snow-covered tip of Mount Jefferson is visible above the trees just left of center.
Photo by Lee Siebert, 1995 (Smithsonian Institution).