Many find it a perfect way to explore nature and beat the heat at the same time. But as thousands of cavers and tourists head underground, scientists are concerned about a deadly threat to cave dwelling bats.
Just south of Bend and nestled into the side of the Newberry National Volcanic Monument, the Lava River Cave stretches nearly a mile under the Earth’s surface. And even though it’s 80 degrees outside, walk just a few yards past the cave’s entrance and your breath suddenly condenses on the cool underground air.
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