From National Monuments

Devils Postpile National Monument

Know Before You Go

Designation
National Monument
State
CA
Park address
Mammoth Lakes, CA
Entrance fee
No entrance feeNPS data as of 2026-08-25
Check current conditions on the official NPS site

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Notes

  • Designation Date: 07/06/1911

  • Established in 1911 by presidential proclamation, Devils Postpile National Monument protects and preserves the Devils Postpile formation, the 101-foot high Rainbow Falls, and pristine mountain scenery. The formation is a rare sight in the geologic world and ranks as one of the world's finest examples of columnar basalt. Its' columns tower up to 60 feet and display a striking symmetry.

Tags

National Monuments