Global Volcanism Program | Image GVP-03309
The Highway lava flow forming the black lobe in the center of the photo at the base of the Pioneer Mountains was erupted about 2300 years ago from a vent at or near North Crater, out of view to the right. Two other Craters of the Moon flows, the Devils Orchard and Serrate lava flows, were also erupted at about the same time. The complex vegetated cinder cone to the right of the Highway lava flow is the late Pleistocene Sunset Cone.
Photo by Lee Siebert, 1994 (Smithsonian Institution).