Devil's Postpile National Monument

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Old Mammoth Rd
Mammoth Lakes, CA 93546

Devils Postpile National Monument, located in Mammoth Lakes, California, was established in 1911 to protect and preserve the unique geological formation known as Devils Postpile. This formation, standing at 101 feet high, is a rare example of columnar basalt, with towering columns reaching up to 60 feet in height and displaying remarkable symmetry. Visitors are treated to pristine mountain scenery and the stunning 101-foot Rainbow Falls.

The monument offers a glimpse into a geologic wonder that is considered one of the finest examples of its kind globally. Nature enthusiasts and geology lovers alike will be fascinated by the intricate details and rare beauty of the Devils Postpile formation. With its seasonal information, operating hours, and shuttle bus services to explore the area, Devils Postpile National Monument provides an opportunity for an enriching and educational adventure in a breathtaking natural setting.

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Reviews

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4.5129 reviews
Photo of Shelby G.
Shelby G.
10/6/2025

What a great experience at Devil's Postpile NP. Easy 1/2 mile hike with some climbing, steep portions of trail. What an incredible experience. Steep climb to top but worth it. Ample parking in...

Photo of Sharon K.
Sharon K.
10/1/2025

Great experience! The hike to Devils Postpile is short walk, less than half a mile from the parking lot. The monument is surreal. It's amazing to see. Past Devils Postpile, you can actually hike...

Photo of Renee N.
Renee N.
8/16/2025

We came here in July and really enjoyed this monument. It is so interesting with all the columnar basalt. The columns tower over 60 feet and these columns were formed approximately 100,000 years...

Photo of Justin M.
Justin M.
7/23/2025

It's a pretty neat geological formation to see, but parking is scarce and it was too crowded when we went, with tons of people on the trail to and from Devil's Postpile to the parking lot. It's...

Photo of Scarlett N.
Scarlett N.
7/9/2025

Updated !!!! July 9th 2025 I leave 3 stars to get your attention only. This place not opened for private car and closed from Monday- Wednesday. Also from Thursday to Sunday, you can visit this...

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United StatesCaliforniaMammoth LakesDevil's Postpile National Monument