Devils Hole

The 40 acres (16 ha) unit is part of the Ash Meadows complex, an area of desert uplands and spring-fed oases that was designated as a National Wildlife Refuge in 1984.

[6] The pool has frequently experienced seiche activity due to far away earthquakes in Japan, Indonesia, Mexico, and Chile, which have been likened to extremely small scale tsunamis.

[5] Below the surface pool, Devils Hole descends approximately 160 feet (50 m) through what is termed the "main chamber" before reaching a narrow opening referred to as the 'funnel'.

[7][8] Immediately after passing the funnel into Acree's Chamber, a narrow side tube can be found to a diver's left.

This side tube proceeds approximately 90 feet (27 m) upward to a chamber with an air pocket, named Brown's Room.

This mission did, however, confirm that the Infinity Room of Devil's Hole, and the cavern system itself, has a depth of at least 1,247 feet (380 m) from the surface.

[12] In March 2017, underwater cinematographer Jonathan Bird received permission to assist scientists in a four-day expedition to take water and calcite core samples.

using hot water and Steramine followed by at least 30 days of air-drying is required by the National Park Service to prevent contamination of the underwater ecosystem.

[15] On September 19, 2022, a seiche reaching 4 feet (1.2 metres) occurred at Devils Hole after a 7.6-magnitude earthquake hit western Mexico, about 1,500 miles (2,400 kilometres) away.

[18] On the surface, the cave openings are connected to Devils Hole by an access road and covered with a locked metal grate.

The reasons for the decrease are unknown, but is possibly due to a microscopic non-indigenous diving beetle that is consuming pupfish eggs.