The cave begins as a simple walk through narrow passages, but deeper inside the terrain changes quickly. The path leads to a ...

The cave system has proven to be a formidable challenge for the international rescue coalition drawing some of the world’s best divers who have volunteered to help in the rescue operation of the ...

Southeastern Minnesota and northeastern Iowa are prime cave terrain, with soluble rock such as limestone eroded over time by running water. For a person on the surface, sinkholes are a clue to finding ...