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Devils Postpile National Monument
Devils Postpile National Monument is a U.S. National Monument located near Mammoth Lakes, California. The monument protects Devils Postpile, an unusual rock formation of columnar basalt. It was created by a lava flow at least 100,000 years ago. The formation is a result of a lava flow that cooled and cracked vertically, creating hexagonal columns. The monument also includes the Rainbow Falls, a 101-foot waterfall on the Middle Fork of the San Joaquin River. The monument is open year-round and offers a variety of activities, including hiking, camping, fishing, and sightseeing.
Amenities
- Recreational Facilities
- Policies
- Other Amenities & Services
- Recreation Nearby (within 10 miles)
- Facility
- On-Site Rentals
- Sites
User Reviews
Samantha Moore
What a unique geological formation! Definitely a must, and you definitely need to hike down to lower Rainbow Falls. Worth the trek!
just keeping up with the Joneses
Beautiful spot to explore! Be mindful of hours, they are doing some road work in the park and you may need to take a shuttle in. Beautiful place for sure
Alexandra Mathiasen
Currently road under construction so only open Saturday and Sunday and only for a couple more weeks for the year. It will be terrific once done. Most things closed or limited but Postpile walk/hike open. As well as some wilderness areas. High altitude so hiking/walking needs to take that I to consideration. It was difficult for me to hike to top of Postpile.
Ashley Gabriel
Very doable hike with sweeping views. My kids had fun and completed hike with little complaining. They enjoyed and so did I. If you get off at the bus stop, the ranger station has good information for you and there is a water fountain and restrooms. If you're continuing on to Rainbow Falls make sure you have a lot of water and sunscreen/hat.
Azy Shine
Don’t Miss Devils Postpile! If you’re going to Mammoth Mountain or Mammoth Lakes, be sure to stop at Devils Postpile. The tall, straight rock columns and the fallen pieces that look like giant broken pencils are truly amazing and one of a kind. You’ll enjoy a beautiful, mostly easy walk with great views all around. It’s a perfect example of California’s natural beauty and diversity. Totally worth the visit!