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Devils Postpile National Monument

End of CA-203 West
Mammoth Lakes, CA 93546

Toll free phone: 760-934-2289

Local phone: 760-934-2289

This unique geological structure features thousands of hexagonal basalt columns formed 100,000 years ago when lava flow slowed and then cooled and cracked. The area is accessible in summer months, and a mandatory shuttle offers visitors transportation to Devils Postpile and other Reds Meadow areas. Catch the shuttle from the Mammoth Adventure Center at Mammoth Mountain Main Lodge.

Visiting Devils Postpile requires a one-mile roundtrip hike. The trail is not fully accessible to wheelchairs at this time.

Traveler Reviews

TripAdvisor Traveler Rating

Overall Rating: 4.5

based on 959 reviews

Best part of our visit to Mammoth Lakes!
We went to the Mammoth Lakes area just to visit this National Monument. It was a lovely walk, and not difficult. The drive to the monument is really beautiful, but make sure you head out early...
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Always a nice hike and view
We were here last month August 2020. Very easy hike even for us old people. Love the view and the nice scenery along the way.
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Easy hike, interesting natural formation
Enjoyed the visit to this iconic Mammoth area natural attraction. The walk is relatively easy and flat.
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Amenities

Full day

Guides & Tours

Restrooms

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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.  Visitors can...
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