Cave Tours Closed for Season
Cave Tours are closed for the winter. Tours will resume April 26, 2014. All trails on the monument remain open.
Due to recent road work on Hwy 46 and steady rain, the road is muddy in spots. Exercise extreme caution while driving to and from the Monument.
Learn more about the region's geologic activity.
Did You Know?
Computer bugs, slang for something gone wrong in a program, are actually named for a real insect. In 1947, technicians working for computer scientist Grace Hopper found a moth inside her computer. The trapped moth was making the machine malfunction. Once removed, they reported that the computer was “debugged”. They taped it onto her notes with a little joke that is now part of our everyday language.