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Jennifer Simonson
FORESTVILLE, Minn.

See inside a Minnesota bat cave

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Little brown bat
A little brown bat hangs on the wall at Mystery Cave Tuesday, Sept. 24, 2013 at Forestville State Park in southeastern Minn. A fungus linked to white-nose syndrome, which can wipe out bat populations, has been found at the cave and state Department of Natural Resources officials are working to prevent its spread.
MPR Photo/Jennifer Simonson

Thousands of Minnesota's most common bats make their winter homes here. So do a handful of the less common big brown bats and tri-colored bats, also known as eastern pipistrelles.

Gallery
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Tricolor bat
A tricolor bat, a small and solitary bat, hangs from old wiring near the rustic entrance to Mystery Cave Tuesday, Sept. 24, 2013 at Forestville State Park in southeastern Minnesota.
MPR Photo/Jennifer Simonson
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Little brown bat
A little brown bat hangs on the wall at Mystery Cave Tuesday, Sept. 24, 2013 at Forestville State Park in southeastern Minn. A fungus linked to white-nose syndrome, which can wipe out bat populations, has been found at the cave and state Department of Natural Resources officials are working to prevent its spread.
MPR Photo/Jennifer Simonson
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Mark White
Mark White, a Department of Natural Resources naturalist at Mystery Cave, talks about the cave and the thousands of bats that hiberate there each winter Tuesday, Sept. 24, 2013 at Forestville State Park.
MPR Photo/Jennifer Simonson