• 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. Winter close down operations have begun. There is no longer potable water, but restrooms will be available until closing. 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 »

Bicycling Information


For those visitors who wish to bike down to the Postpile, bicycles are allowed down the road free of charge. If, however, visitors choose not to ride back out of the Valley and opt to use the shuttle instead, they must pay the transportation fee. The shuttle buses will take bicycles if space is available.


The Reds Meadow Road beyond Minaret Vista twists and turns for about 6.5 miles and 2000 vertical feet down to Devils Postpile. The road is paved, however, it is very narrow and cyclists should be aware of debris. It is a beautiful and challenging ride, particularly for those who make the trek back up to the Vista. For those looking for just a downhill ride, consider riding the shuttle bus back to your vehicle at the Adventure Center at Mammoth Mountain. For specific details and tips for a safe cycling trip in the Reds Meadow Valley, click here.


Although trail riding is not permitted on any trails in the Monument, riders may want check at the Mammoth Welcome Center for information about mountain bike trails in the town of Mammoth Lakes and at Mammoth Mountain.


While riding down Reds Meadow Road, bicyclists should exercise extreme caution as they must share the road with large RVs, stock trailers, and shuttle buses. Bikes are subject to the same speed limits as all other vehicles on the roadway. Please be cautious of debris which frequently litters the road.

Bicyclists can park their bikes at the bike rack provided adjacent to the Ranger Station.
Visitors are welcome to bike down Reds Meadow Road to the Monument.  Bikes, however, cannot be taken on trails.  For bicyclists interested in hiking in the area, a bike rack for temporary storage is available next to the Ranger Station.
NPS Photo

Did You Know?

Dogs are allowed on all trails in the monument.

Devils Postpile is a pet friendly park. Pets are allowed on all trails as long as they are on a leash. Leashed pets can even ride the shuttle bus!