Route 66 - Day 21
July 18th 2012 Up and gone before 8 again today. Since we were so close to our next stop we decidied to see the caverns at Wind Cave National Park. The park has a really neat history. The caverns are some of the most complex in the world with the largest extent of boxwork structures ever found. They are also the 5th longest with over 100 miles of mapped tunnels on three levels all within 1 square mile. The
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