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 7/22/2014 More »
Gypsum formations form in a similar way to calcite speleothems. Gypsum is a mineral, with the chemical formula CaSO4· 2H2O. Basically, it is calcium sulfate with some water attached. Gypsum can take forms known by cavers as snow, flowers, crust, needles, and hairs, depending on the shape. There are no gypsum formations along the tour route, but there are many in the Gypsum Annex. They tend to be white (or colorless), small, and very fragile.
Did You Know?
Cattle grazing was eliminated from Great Basin National Park in 1999. The South Snake Range is still home to 10-15 Rocky Mountain bighorn sheep.