• Devils Postpile Formation

    Devils Postpile

    National Monument California

  • Closures in Effect During Spring Plowing and Cleanup

    Devils Postpile is currently closed for the season. The Reds Meadow/Devils Postpile Road is closed to pedestrians and cyclists to allow cleanup efforts to proceed safely. All valley trails are also closed to pedestrian traffic until cleanup is completed. More »

For Kids

SUMMER ACTIVITIES

There are lots of things for kids to do while visiting Devils Postpile National Monument.

The Junior Ranger program is a great place to start. Kids of all ages are encouraged to participate in the program. 

Ranger led hikes and programs are also offered daily in the summer and are a great way to learn more about the monument.

Special events and programs may be available. Please check the Events Calendar for more information.

WINTER EVENTS

The monument is not open in the winter, but rangers from Devils Postpile occasionally present programs at locations in the Town of Mammoth Lakes. Once a month, rangers participate in the Mammoth Lakes Library Story Hour. For dates and times, see the Events Calendar. Other programs will be posted there as they are available.

Did You Know?

The tops of the Postpile's columns

Devils Postpile is one of the finest examples of columnar basalt in the world.  Approximately 55% of the formation's columns are six-sided. More...