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Within the Yosemite region, andesitic lava flows and lahars flowed north of the Grand Canyon of the Tuolumne and volcanic dikes and plugs developed from faults on the flanks of Mount Dana. There is also evidence for a great deal of rhyolitic ash covering the northern part of the Yosemite region 30 million years ago. This and later ash deposits ...
In 1864, Yosemite Valley and the Mariposa Grove of giant sequoia trees were transferred from federal to state ownership. Yosemite pioneer Galen Clark became the park's first white guardian. Conditions in Yosemite Valley were made more hospitable to non-indigenous people, and access to the park was improved in the late 19th century.
The natural and cultural history of Yosemite Valley is presented at the Yosemite Valley Visitor Center, the adjoining Yosemite Museum, and the Nature Center at Happy Isles. The parks' two National Historic Landmarks are the Sierra Club 's LeConte Memorial Lodge (Yosemite's first public visitor center), and the Ahwahnee Hotel.
Comprising 1,200 square miles, Yosemite has a lot to offer visitors. “It’s, like, between the natural history, the culture history, the wildlife, the beauty and the size, there’s so much to ...
Sequoia National Park, a Geological Album [32] The Story of the Yosemite Valley [33] (includes photographs by Frank C. Calkins) Geologic History of the Yosemite Valley [34] Sketch of Yosemite National Park and an Account of the Origin of the Yosemite and Hetch Hetchy Valleys [35] Mount Rainier and its glaciers: Mount Rainier National Park [36]
The Yosemite Park Company had built the Yosemite Lodge and Yosemite Village had its own group of merchants. Fire had destroyed a number of the original valley hotels and concession owners came and went until Park Service forced the two largest companies to merge in order that one single concession contract could be given.
Half Dome, Yosemite, a classic granite dome of the Sierra Nevada Batholith. The Sierra Nevada Batholith is a large batholith that is approximately 400 miles long and 60-80 miles wide which forms the core of the Sierra Nevada mountain range in California, exposed at the surface as granite.
Almost all of the landforms in the Yosemite area are cut from the granitic rock of the Sierra Nevada Batholith (a batholith is a large mass of intrusive igneous rock that formed deep below the surface). [2] About 5% of the park's landforms (mostly in its eastern margin near Mount Dana) are metamorphosed volcanic and sedimentary rocks. [3]