Devils Postpile National Monument is a U.S. national monument located near Mammoth Mountain in Eastern California. The monument protects Devils Postpile, an unusual rock formation of columnar basalt,
Basalt columns of Devils Postpile
Rainbow Falls at Devils Postpile National Monument
The tops of the postpile columns are accessible to visitors. The shapes of the column cross sections are seen clearly here.
Top of columnar basalt showing polygonal shapes
Thousand Island Lake
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Thousand Island Lake is a large alpine lake in the Sierra Nevada, within the Ansel Adams Wilderness in eastern Madera County, California.
Banner Peak above the lake
View of the lake from near the outlet creek