National Monument · CA
Devils Postpile National Monument
Established in 1911 by presidential proclamation, Devils Postpile National Monument protects and preserves the Devils Postpile formation, the 101-foot high Rainbow Falls, and pristine mountain scenery. The formation is a rare sight in the geologic world and ranks as one of the world's finest examples of columnar basalt. Its' columns tower up to 60 feet and display a striking symmetry.
Operating hours
Devils Postpile National Monument
In the operating season, Devils Postpile National Monument is open 24 hours a day, 7 days a week. The Monument usually opens in mid-June. By mid to late October, early winter storms in the High Sierra typically begin to bring snow to the area.