Lechuguilla Cave is a remarkable limestone cave located in Carlsbad Caverns National Park in New Mexico, USA. Discovered in 1986, it is known for its stunning formations, including unique mineral deposits and extensive passages. The cave extends over 138 miles, making it one of the longest caves in the world. The cave is also significant for its pristine environment, containing rare ecosystems and species. Unlike many other caves, Lechuguilla Cave has remained largely untouched by human activity, allowing scientists to study its geology and biology. Access is limited to protect its delicate features and ecosystems.