Global Volcanism Program | Image GVP-03317

The Big Craters lava flow in the foreground, one of the youngest at the Craters of the Moon, originated about 2200 years ago from vents at the northern base of Big Craters. The flows traveled north before being deflected by the slopes of the Pioneer Mountains in the background and then flowed primarily to the SW. Photo by Lee Siebert, 1994 (Smithsonian Institution).

The Big Craters lava flow in the foreground, one of the youngest at the Craters of the Moon, originated about 2200 years ago from vents at the northern base of Big Craters. The flows traveled north before being deflected by the slopes of the Pioneer Mountains in the background and then flowed primarily to the SW.

Photo by Lee Siebert, 1994 (Smithsonian Institution).

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Craters of the Moon