Almost all cave formations are made of calcite, the crystal of calcium carbonate. Different minerals and different movements in the water account for an incredible variety of cave formations...
Lewis & Clark Caverns
![Lewis & Clark Caverns Lewis & Clark Caverns](https://i0.wp.com/www.design42.com/caving/blog/wp-content/uploads/2016/11/img_7683-2-1.jpg?resize=720%2C350&ssl=1)
Lewis & Clark Caverns – Less than an hour west of Bozeman, Montana. We were looking for something to do while we waited a couple of days for the rest of the family to meet us in Bozeman to head
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