Global Volcanism Program | Image GVP-03035

A lava flow, still largely unvegetated, was emplaced about 3,850 years ago from Nash Crater in the Sand Mountain volcanic field of the central Oregon Cascades. This and contemporaneous lava flows blocked local drainages, forming Lava Lake and Fish Lake. Photo by Lee Siebert, 1995 (Smithsonian Institution).

A lava flow, still largely unvegetated, was emplaced about 3,850 years ago from Nash Crater in the Sand Mountain volcanic field of the central Oregon Cascades. This and contemporaneous lava flows blocked local drainages, forming Lava Lake and Fish Lake.

Photo by Lee Siebert, 1995 (Smithsonian Institution).

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Keywords: lava flow

Sand Mountain Field