Saturday, 27 June, 2015 We left the campground this morning and drove to Craters of the Moon National Monument, about 20 miles from Arco, ID. It is comprised of 750,000 acres of lava. Lava in the form of cinder cones, lava tubes, lava caves, spatter cones, and both smooth flowing (pahoehoe) and rubble-like ('a'a) lava. The area started having eruptions about 15,000 years ago, the latest being about 2,000 years ago. This was not the result of one or two volcanoes, but a series of deep fissures known as the Great Rift. Scientists do think more eruptions are likely. The plants growing from the lava gives the area an other-worldly look. We then drove across southeast Idaho through Blackfoot and Pocatello to southwest Wyoming. We drove through some beautiful valleys green with fields of wheat, hay,
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