• Devils Postpile Formation

    Devils Postpile

    National Monument California

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  • Devils Postpile National Monument is Open for the Season

    Devils Postpile is open for the 2014 season. The ranger station will be open daily from 9am-5pm. The Devils Postpile campground is open. Ranger walks to Devils Postpile occur daily at 11 am. More »

Geologic Formations

Devils Postpile National Monument was created to protect one of the best examples of columnar basalt in the country. The geologic story of the monument, however, neither begins nor ends with the Postpile itself. Although that is a very important part of the story, the rest of it involves violent uplifts, rivers of fire and ice, and the slow workings of wind and water to form the magnificent geology of this area. To learn more, visit our geology page.

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.