Little Devils Postpile, Columnar basalt formation in Yosemite National Park, California.
Little Devils Postpile exhibits vertical columns of basalt rock along the Tuolumne River, several miles west of Tuolumne Meadows in the Sierra Nevada range.
The formation emerged through volcanic activity millions of years ago, when cooling lava created geometric patterns through natural contraction processes.
The site represents a significant example of geological preservation within Yosemite National Park, drawing researchers and nature observers throughout the year.
Visitors can reach Little Devils Postpile through marked trails in Yosemite National Park, with the Pacific Crest National Scenic Trail providing direct access.
The formation contains numerous hexagonal basalt columns that formed naturally, resembling a smaller version of the Devils Postpile National Monument to the south.
Location: California
Location: Tuolumne County
GPS coordinates: 37.90050,-119.41300
Latest update: March 7, 2025 01:07
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