Photo by Jim Hoffman
This mystery location was discovered in 1937 and is part of the longest cave in Minnesota. The 13-mile network of passages includes stalactites, stalagmites, and remarkable underground pools such as this one. Find it in the Driftless Area of the Midwest, also known as Bluff Country in Minnesota.
Recognize this spot? If so, fill out our form here to tell us where it is and share your connection to it. We’ll feature our favorite responses in an upcoming issue and send the winner a MnMo prize package.
