Crystal peak is located at the north end of the Wah Wah range in Millard County.

"Crystal Peak is the product of one of Millard County’s many volcanoes, thought to have erupted 33 million years ago. It is not actually the volcano itself, but part of the tuff ring (material thrown out of an erupting volcano that collects in a ring around the base of the volcano). The volcano’s vent is thought to have been just east of where Crystal Peak sits. The rhyolite tuff rock has a large amount of quartz crystals in it that increases its ability to reflect sunlight. The whiteness of the rock also indicates that there is no iron in it. The surfaces of the rock here have many grooves and shallow holes creating a very beautiful and surreal landscape. It’s fun to look for small crystals hidden in the holes."

See: http://www.greatbasinheritage.org/great-basin-heritage-Crystal-Peak.html for more information.