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Yosemite National Park (Calif.)

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View Resource Yosemite Geology

The National Park Service maintains the Yosemite National Park Web site and the corresponding Geology page. This Web site gives an overview of the geologic history of the site, tells how the Sierra Nevada range formed, explains the basics of granitic rock, shows how glaciers carved out the canyons, and much more.[JAB]

https://www.nps.gov/yose/learn/nature/geology.htm