Lava River Cave

4.50 out of 5


This is a lava tube cave that is .75 miles long, the longest cave of this kind known in Arizona. According to geologists, it resulted from an ancient eruption from "a volcanic vent in nearby Hart Prairie." The cave is controlled by the Forest Service, and as such it is open year round and has very few restrictions. The cave is mostly dry, but there are some wet spots inside. Temperatures are usually about 40 degrees F inside the cave, so it is not uncommon for there to be ice on the rocks. There are no sources of natural light. Please do not bring dogs into the caves.
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  • Posted by Greg Heil on March 12, 2012


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