Lechuguilla Cave Pool

Lechuguilla Cave pool is one of several pristine pools of water discovered within Lechuguilla Cave, located in Carlsbad Caverns National Park, New Mexico, USA.

Location and Discovery: This pool was discovered during an expedition in October 2019, 700 feet below the entrance of Lechuguilla Cave. It's part of a cave network that's one of the longest in the world, with explorations dating back to 1986, but this particular pool was only recently highlighted.

Lechuguilla Cave pool, part of Carlsbad Caverns National Park in New Mexico. Photo Copyright © Michael Nichols

The pool is described as "completely pristine" and appears to be untouched by humans for hundreds of thousands of years. It's located about 700 feet below the cave's entrance. The water in the pool looks milky or has a creamy tint due to an optical illusion but is actually crystal clear. This pool, surrounded by white frosted rock, is believed to have formed from ancient rainwater seeping through the limestone roof of the cave.

Scientific Significance: These isolated pools are of great interest to scientists because they offer a glimpse into environments where microbial life has evolved in isolation from human influence. The water samples from these pools are relatively free of contaminants, making them valuable for studying microorganisms that have developed without external interference. The pools contain bacteria that might have evolved unique traits due to their long isolation.

 

Protection and Access: Due to the delicate nature of the cave's geological and biological features, access to Lechuguilla Cave is strictly controlled. It's primarily open to scientific researchers, and special precautions are taken to avoid contaminating these natural wonders.