• Devils Postpile Formation

    Devils Postpile

    National Monument California

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  • Monument Open Until October 31, Visitor Services Limited this Fall

    Devils Postpile and the Reds Meadow Valley will be open until October 31, weather permitting. The shuttle bus is no longer running so visitors can drive their vehicles into the monument. Parking is limited and can be full on weekends, plan accordingly. More »

  • 37-Foot Vehicle Length Restriction on the Devils Postpile Access Road

    Devils Postpile has a limit of 37 feet for vehicles on the monument road. This may change during weather events, construction activities, vehicle congestion, or for safety reasons. Call or email for more information. More »

Nature & Science

Nature and Science

Devils Postpile National Monument is a small but rich environment. Located on the western slope of the Sierra Nevada range between 7,200 and 8,200 feet (2,200 to 2,500 meters), the Monument contains an interesting assemblage of flora, fauna and geology.

Devils Postpile National Monument's landscape is a reflection of fire and ice. The eruption and uniform cooling of basalt lava created an impressive wall of columns. Later a glacial event exposed the columns and polished smooth the top of this formation enhancing the pattern of hexagons that are a result of the mineral composition of the lava. Several other lava flows have occurred in the Monument and surrounding area. Volcanic activity lives on today at the Monument's soda spring.
More on Geology...

The flora and fauna at Devils Postpile are typical of the Sierra Nevada. Visitors can see animals and plants such as black bear, eagles, pine and fir trees, as well as many wildflowers.

Though technically a west slope location, close proximity to the eastern slope of the Sierra and a low pass creates circumstances that allow species from both sides to mix. The unique geography of the area fosters relatively high species diversity concentrated in a small area. Soda Springs Meadow, near the Ranger Station, harbors an abundance of songbirds and wildflowers. The talus at the base of Devils Postpile is home to many squirrels and chipmunks and the pine martens which hunt them. Another asset in terms of biodiversity is the burned area near Rainbow Falls, which is habitat for many plants and animals that will not live in heavily forested areas. Measuring and monitoring biodiversity in America’s parks is important to the National Park Service. Devils Postpile is part of the Sierra Nevada Network for Inventory and Monitoring, which keeps track of all the species known to live in or migrate through the Monument.
For information on the Sierra Nevada Network for Inventory and Monitoring, click here.

Did You Know?

Black Bears are excellent tree climbers.

Black bears are commonly seen in Devils Postpile. Although they are not as active in winter months and spend much of this time in their dens, they could be seen any time of the year.