Rock Lake Photos 

Devil's Well: Is located south of the Hole in the ground parking place bridge between Bonnie Lake and Rock Lake. It is on the west side of the canyon. See GPS reading and directions below. According to geological studies in the Northwest room's ice cave folder the Devil's Well name is due to misunderstanding. The way this 7 foot diameter cylinder occurred underground was that a flooding was pushed around a giant Sequoia or Redwood due to a lava flow so that up to around a hundred feet of the tree was wet when the lava hit it. The higher part of the tree that was not wet was burnt by the lava creating the ceiling of the cave. The wet part of the tree withstood the lava's heat just long enough for the nearest lava to cool into the shape of the bark of the tree. This hole was about one hundred feet deep originally, but children fell into it causing locals to fill it to its ten foot height today. Rocks have fallen out of place over the years, but in many places you can see the bark of the ancient tree. The cave is very cylindrical. Luckily there is a crack in the lava wall or we might not know about this at all. For another interesting cast made of a prehistoric Rhino, see Blue Lake Rhino.

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From a distance see the old wagon trail coming down the cliffside.
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See the cave entrance now
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Inside there is a ten foot high perfect cylinder shape where a giant Sequoia or Redwood was surrounded by lava flow.
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The cylinder was 100 feet deep until filled in because children were falling in. The lava flow caused a flood which wetted the tree so that the lava flowing around the tree did not burn the large tree up. The lava cooled around the tree filling its liquidity into the shape of the bark. Then the tree slowly rotted out. Now in the cylinder we can see the bark of the ancient tree. (See above picture taken inside the cylinder) You can read more about this in the Spokane main library Northwest room where I first heard about it in a geologist's description of interesting geological events in the Palouse area. It is mixed in with the ice cave folders.