• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wind Cave Room - Calcite Lake

Calcite rafts on Calcite Lake
Calcite rafts on Calcite Lake
NPS Photo by Dave Schnute
This lake, discovered by Herb Conn and Dave Schnute on December 18, 1968, was originally simply called the "Lake" by these explorers. It is known for its abundance of calcite rafts ("calcite ice") which precipitate on its surface. This was the first large lake discovered in the cave.

Did You Know?

Natural Entrance of Wind Cave

Winds caused by changes in barometric pressure are what give Wind Cave its name. These winds have been measured at the cave's walk-in entrance at over 70 mph. The winds at the natural entrance of the cave attracted the attention of Native Americans and early settlers.