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Eureka Cave
Mountain Home, Idaho
5.9 miles E of Mountain Home, IdahoEureka Cave is a lava tube. In other words, this was previously a tunnel for lava flows. There's a large hole to get into the cave. While climbing equipment is helpful, most relatively fit...
Cave Last visited on 25 Sep 2018Gore's Cave
Boise City-Nampa, ID, Idaho
33.1 miles SE of Boise City-Nampa, ID, IdahoLava Tube - Cave. These are formed when fluid, molten lava flows out of the ground, it behaves like a stream of water working its way downhill. But soon the "stream" surface cools and hardens. This...
Cave Last visited on 13 Sep 2018
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