Little Devils Postpile
Encyclopedia
Little Devils Postpile, in Yosemite National Park
Yosemite National Park
Yosemite National Park is a United States National Park spanning eastern portions of Tuolumne, Mariposa and Madera counties in east central California, United States. The park covers an area of and reaches across the western slopes of the Sierra Nevada mountain chain...

 in California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, is a set of columnar joints in a basalt
Basalt
Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...

 plug
Volcanic plug
A volcanic plug, also called a volcanic neck or lava neck, is a volcanic landform created when magma hardens within a vent on an active volcano. When forming, a plug can cause an extreme build-up of pressure if volatile-charged magma is trapped beneath it, and this can sometimes lead to an...

 resembling the Devils Postpile formation. It is located along the Tuolumne River
Tuolumne River
The Tuolumne River is a California river that flows nearly from the central Sierra Nevada to the San Joaquin River in the Central Valley...

 a few miles west of Tuolumne Meadows
Tuolumne Meadows
Tuolumne Meadows is a gentle, dome-studded sub-alpine meadowy section of the Tuolumne River, in the eastern section of Yosemite National Park. Its approximate location is . Its approximate elevation is 8619 feet .-Natural History:...

.

See also

  • Category: Rock formations in California
  • Category: Columnar basalts
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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