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Generalized geologic map of the Yosemite area. (Based on a USGS image) The exposed geology of the Yosemite area includes primarily granitic rocks with some older metamorphic rock. The first rocks were laid down in Precambrian times, when the area around Yosemite National Park was on the edge of a very young North American continent.
In North America, neoglaciation had ecological effects in the spread of muskeg on flat, poorly drained land, such as the bed of recently drained Lake Agassiz and in the Hudson Bay lowlands, in the retreat of grassland before an advancing forest border in the Great Plains, and in shifting ranges of forest trees and diagnostic plant species ...
Yosemite National Park (/ j oʊ ˈ s ɛ m ɪ t i / yoh-SEM-ih-tee [5]) is a national park of the United States in California. [ 6 ] [ 7 ] It is bordered on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest .
Now we know the valley and surrounding area as Yosemite National Park – one of America’s most popular national parks, with 3,897,070 million visitors in 2023 – designated in 1890. You have ...
Half Dome is a quartz monzonite batholith at the eastern end of Yosemite Valley in Yosemite National Park, California. It is a well-known rock formation in the park, named for its distinct shape. One side is a sheer face while the other three sides are smooth and round, making it appear like a dome cut in half.
Yosemite National Park's El Capitan and Cathedral Rocks with the Merced River on Feb. 1, 2021. (Carolyn Cole / Los Angeles Times) Summer online reservations for Yosemite National Park have been ...