• Grand Palace

    Great Basin

    National Park Nevada

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  • Road Work at Great Basin National Park

    Beginning July 8, 2014 and continuing through the end of August there will be road work at Great Basin National Park on paved roads throughout the park. Delays of 10 minutes or less may occur. Updated 7/29/2014 More »

  • Astronomy Programs on Hold

    Astronomy programs are on hold while a safety review is completed for visitor and staff safety. Check back soon for an update when the programs will start again. More »

Flowstone

Flowstone seen in profile

A profile, or side view of flowstone deposits near the exit tunnel

NPS PHOTO

Flowstone: Waterfalls of Stone
Flowstone is one of the most common forms of cave formations, and is found throughout Lehman Caves. Usually, flowstone is composed of calcite, but can also be formed by other carbonate minerals. The formation process involves water flowing along the walls or over the floor of a cave passageway, creating sheetlike deposits of calcite in the wake of the water.

Minerals including calcium carbonate, aragonite, gypsum, and other minerals are dissolved in teh water and are despoited when the water degasses and releases carbon dioxide. The flowstone forms when thin layers of these deposits build up over time. Flowstone can easily be seen along the guided tours in the Wedding Chapel, The Lodge Room, and along the exit tunnel, where blasting has given us an idea of what flowstone looks like in profile.

Did You Know?

Bonneville Cutthroat Trout

The Bonneville cutthroat trout is the only trout native to Great Basin National Park and East Central Nevada. Ancestors of the current Bonneville cutthroat trout were abundant in ancient Lake Bonneville 16,000 to 18,000 years ago, the remnant of what is now the Great Salt Lake in Utah.