Tongue River Cave

Tongue River Cave is a cave in the Bighorn National Forest just west of Dayton, Wyoming, United States. Historically notable for a wide variety of rare cave formations and animal species, the cave has suffered in recent decades from unrestricted traffic, vandalism, and the theft of many of the cave's speleothems. Deemed beyond preservation, the cave is now managed by the U.S. Forest Service as a "sacrifice cave". The Bighorn National Forest closed the cave to the public in July 2010 to prevent the spread of white-nose syndrome; however, the cave has since been reopened. Registration and decontamination of clothing and gear is now required to visit the cave per Forest Order.

Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).