"Caroling in the Cave" at Cave of the Mounds
BLUE MOUNDS, Wis. -- It's Christmas at the Cave of the Mounds.
The natural landmark in central Wisconsin holds an annual Christmas concert.
"Caroling in the Cave" has become a hit because of the acoustics. The cave was once mined for limestone.
It became a landmark in the 80s and is open for tours year round.
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