An underground lake (also known as a subterranean lake) is a lake underneath the surface of the Earth. Most naturally occurring underground lakes are found...

The Lake Vermilion-Soudan Underground Mine State Park is a Minnesota state park at the site of the Soudan Underground Mine, on the south shore of Lake Vermilion...

Waterfall located underground Underground lake – Lake under the Earth's surface Wikimedia Commons has media related to Underground rivers. William Herbert...

Saint-Léonard underground lake (French Lac souterrain de Saint-Léonard) is located at Saint Léonard in the canton of Valais, Switzerland. It is formed...

of salt", an underground lake, stalactites, and salt efflorescences complete the inert equilibrium of the giant bell. The underground lake is between 0...

contains the world's largest non-subglacial underground lake, with an area of almost 2 hectares (4.9 acres). The lake is located around 100 metres (330 ft)...

and the world's second largest non-subglacial underground lake, The Lost Sea. In addition to the lake, the caverns contain an abundance of crystal clusters...

The Moqua Well is a small underground lake, in Nauru. During World War II, Moqua Well was the primary source of drinking water for inhabitants of Nauru...

imprint of a vast underground lake under Darfur. The potential water deposits are estimated at 49,500 km2 (19,110 sq mi). The lake, during epochs when...

Lake Vouliagmeni ("Sunken Lake") is a small brackish-water lake fed by underground currents seeping through the mass of Mount Hymettus located to the south...