Fort Stanton-Snowy River Cave National Conservation Area

The Fort Stanton - Snowy River Cave National Conservation Area was established in 2009 to protect, conserve, and enhance the unique and nationally important historic, cultural, scientific, archaeological, natural, and educational subterranean cave resources of the Fort Stanton - Snowy River Cave system. The NCA was once known as the Fort Stanton Military Reservation. In 1855, the U.S. Army established Fort Stanton as an Infantry and Cavalry post in the east-central New Mexico Territory to protect settlers in the region. Within the NCA is Fort Stanton Cave, which has over 56 miles of passage mapped. It is the second longest cave in New Mexico, the seventh longest in the U.S., the 32nd longest in the world, and the largest cave the BLM manages. Snowy River is a significant passage within Fort Stanton Cave and is the longest cave formation in the world. Ongoing exploration continues, and previously unknown passages have been identified and mapped without reaching the end.