Lehman Caves, well known for its numerous shield formations, offers amazing views of fantastic speleothems and Nevada's longest cave. Year round two different tours are offered by reservation to access the cave. 

Cave tours are offered daily, year-round, except for Thanksgiving Day, Christmas Day, and New Year's Day. Park rangers lead all tours and explain the history, ecology, and geology of the caves.  Cave tours regularly sell out. Reservations through Recreation.gov are strongly recommended.