Devils Postpile National Monument

Devils Postpile National Monument in eastern California near Mammoth Mountain protects a nearly 60 foot rock formation of basalt columns. The park is usually open from mid-June through mid-October (depending on weather). Devils Postpile also contains the 101 foot Rainbow Falls, the highest waterfall on the Middle Fork of the San Joaquin River in the Sierra Nevada mountains.

Location: Devils Postpile National Monument is located in Madera County, California, near Mammoth Lakes. The monument is nestled in the heart of the Sierra Nevada and is part of the Ansel Adams Wilderness.

History: Established on July 6, 1911, by presidential proclamation, Devils Postpile National Monument was created to protect and preserve the unique geological formation known as Devils Postpile, the 101-foot high Rainbow Falls, and the surrounding pristine mountain scenery. The monument was once part of Yosemite National Park, but a boundary change in 1905 left the Postpile on adjacent public land. Influential conservationists, including John Muir, played a key role in preventing the demolition of the formation for a proposed hydroelectric dam.

Why It Is Protected: Devils Postpile is a rare geological wonder, showcasing one of the world’s finest examples of columnar basalt. The columns, which tower up to 60 feet high, are closely and perfectly fitted together like a vast mosaic. The monument also protects Rainbow Falls and the surrounding mountain scenery, ensuring that these natural treasures remain unspoiled for future generations.

Things to Do: Visitors to Devils Postpile National Monument can enjoy a variety of activities:

Hiking: There are about eight miles of trails within the monument, offering opportunities for all fitness levels. Popular hikes include the easy 0.8-mile hike to the base of Devils Postpile and the five-mile hike to Rainbow Falls.
Wildlife Viewing: The monument is home to a variety of flora and fauna, including black bears, pine martens, mule deer, coyotes, and numerous bird species.
Fishing: Anglers can enjoy fishing in the clear waters of the San Joaquin River.
Photography: The stunning landscapes and unique geological formations provide excellent opportunities for photography.
Camping: There are campgrounds available for those who wish to stay overnight and experience the beauty of the area.

Whether you’re looking for a challenging hike, a peaceful fishing spot, or simply a chance to admire the natural beauty, this monument has something to offer everyone.