Why go
The almost regular basalt columns of the Devils Postpile were created by cooling lava and later glacier erosion. The monument is located in a remote valley west of Mammoth Mountain.
The stop can be easily integrated into the proposed round trip and offers a clear contrast to the previous stage.
At a glance
Category | Information
Ideal stay | 1⁄2–1 day
Best time to visit | Summer–early autumn
Fifth-wheel access | Check your vehicle, specific campsite and approach road.
Priority | Nature, road trip & local experiences
Devils Postpile
A short path leads to the wall of hexagonal basalt columns; from above, the honeycomb pattern is particularly visible.
Rainbow Falls
The hike leads to a wide waterfall, where rainbows often emerge when the light is right.
Reds Meadow Valley
Forests, meadows and river landscape form a quiet high mountain environment.
Hiking
Discovering geology
Rainbow Falls
Photographing
Shopping
In the valley, the supply is very limited. Take water and food from Mammoth Lakes with you.
Food & drink
Don't rely on gastronomy in the monument. Mammoth Lakes offers the best selection before and after the trip.
Campgrounds
Campgrounds in the Reds Meadow Valley only with open access and according to current rules
Mammoth Mountain RV Park
Twin Lakes Campground
Practical tips
The access road is seasonal and subject to shuttle or vehicle regulations.
Leave RV and Fifth Wheel in Mammoth Lakes.
Check opening, shuttle and fire situation on visit day.
Our recommendation
Devils Postpile and Rainbow Falls together result in a varied day trip. The more complicated journey is especially worthwhile for hiking and geology fans.