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Global Volcanism Program | Image GVP-03012

Mount Jefferson in the center and Mount Hood at the right, seen from Broken Top volcano to the south, are the two highest peaks in Oregon, towering above lower volcanic peaks of the High Cascades, such as Black Butte in the left foreground.  Mount Hood has been active in historical time and Mount Jefferson has Holocene cinder cones to its south although it has not erupted since the late Pleistocene. Photo by Lee Siebert, 1982 (Smithsonian Institution).

Mount Jefferson in the center and Mount Hood at the right, seen from Broken Top volcano to the south, are the two highest peaks in Oregon, towering above lower volcanic peaks of the High Cascades, such as Black Butte in the left foreground. Mount Hood has been active in historical time and Mount Jefferson has Holocene cinder cones to its south although it has not erupted since the late Pleistocene.

Photo by Lee Siebert, 1982 (Smithsonian Institution).


Jefferson