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Devils Postpile National MonumentColumnar basalt
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OPEN FOR THE 2008 SEASON

Devils Postpile National Monument opened on Saturday June 7th. For closing information see "Operating Hours and Seasons".

A Geologic Wonder

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 60 feet high and display an unusual symmetry.

 
Reds Meadow Shuttle Bus at the Monument

Reds Meadow Shuttle Bus

Since 1980, the Reds Meadow Shuttle has been in operation. By reducing the number of vehicles entering the Valley, the shuttle system has helped return the area to a more pristine condition for all to enjoy. 
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Rainbow Falls

Rainbow Falls

Just two miles downstream from the Postpile formation lies Rainbow Falls, once called “a gem unique and worthy of its name.” The Falls drop an impressive 101 feet and are aptly named for the colorful rainbows that form in its mist.
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The Ritter Range

Hiking the High Sierra

Not only does the Monument preserve and protect the fascinating formation of the Postpile, but it also serves as a portal to the sublime High Sierra backcountry. Over 90% of the Monument is designated as wilderness. Both the John Muir and the Pacific Crest Trails pass through the Monument.  A myriad of day-hikes and overnight trips originate from the Monument's trailhead.
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Campsite in Devils Postpile National Monument's campground

Camping

The Monument's campground sits near the Middle Fork of the San Joaquin river and offers 21 first-come, first-served sites. An ADA-accessible site is available. 
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Write to

Devils Postpile National Monument
P.O. Box 3999
Mammoth Lakes, CA 93546

E-mail Us

Phone

General Park Information
(760) 934-2289

Fax

(760) 934-4780

Climate

Devils Postpile National Monument is located at 7,560 feet above sea level just west of the Sierra Nevada crest. As such, it experiences typical Sierran summer weather. Afternoon thunderstorms are common in July and August. Daytime temperatures range from the mid-70s to low 90s (degrees fahrenheit). Evening temperatures can drop into the low 40s (and even the low 30s in September and October).
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The tops of the Postpile's columns  

Did You Know?
Devils Postpile is one of the finest examples of columnar basalt in the world. Approximately 55% of the formation's columns are six-sided.
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Last Updated: September 17, 2008 at 16:00 EST