Monthly Archives: November 2016

New Additions – Craters of the Moon National Monument – Near Arco, Idaho

After the Grand Teton, Craters of the Moon are some what of a let-down.  Cinder cones just don’t have the grandeur of those beautiful peaks.  Of course the mountains were built up over a lengthy period but the lava and cinder fields at the Craters happened in the blink of an eye in comparison.  Eruptions started only 15,000 years ago and ended about 2,000 years ago; just yesterday in comparison.  Craters covers about 750,000 acres but that is only a small part of the lava flows that cover the Snake River Basin.  Just think, all that black rock was brought to that area by the same magma dome under Yellowstone!  Ansaldo49