Devil's Postpile National Monument

5.0	Great Geology Lesson (Aug 9, 2005) Just returned from a trip to Mammoth Lakes and the Devils Postpile. I'd highly recommend the 11 AM ranger tour as they explain... r8drz , a user of Tripadvisor, Read full review on Tripadvisor
3.5	A Full Day's Activity (Jul 31, 2006) I've never been to the Devil's Postpile and wasn't sure what to expect. I was expecting to drive to a trailhead, hike in 1/2 mile or so, see the rocks and then head on to the next site. However, it turns out that there's a mandatory shuttle leaving from... JohnKr , a user of Tripadvisor, Read full review on Tripadvisor

The Monument is only open during the summer season. The Monument opened for the 2007 summer season on May 26th.

Admission : Adults - $7.00 Children (3 to 15 years of age) - $4.00 Groups staying overnight in Reds Meadow Valley - $20.00 car cap** 2007 3-day pass*** - $14.00 2007 Season Pass - $35.00
Childrens Programs: http://www.nps.gov/depo/forkids/beajuniorranger.htm