File:Highland Peak, Sierra Nevada Range, Alpine County, California (21384522330).jpg

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The Sierra Nevada is a mountain range in the western United States, between the Central Valley of California and the Basin and Range Province. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Nevada.

The Sierra runs 400 miles (640 km) north-to-south, and is approximately 70 miles (110 km) across east-to-west. Notable Sierra features include Lake Tahoe, the largest alpine lake in North America; Mount Whitney at 14,505 ft (4,421 m), the highest point in the contiguous United States; and Yosemite Valley sculpted by glaciers out of one-hundred-million-year-old granite. The Sierra is home to three national parks, twenty wilderness areas, and two national monuments. These areas include Yosemite, Sequoia, and Kings Canyon National Parks; and Devils Postpile National Monument.

The character of the range is shaped by its geology and ecology. More than one hundred million years ago during the Nevadan orogeny, granite formed deep underground. The range started to uplift four M.A. (million years) ago, and erosion by glaciers exposed the granite and formed the light-colored mountains and cliffs that make up the range. The uplift caused a wide range of elevations and climates in the Sierra Nevada, which are reflected by the presence of five life zones. Uplift continues due to faulting caused by tectonic forces, creating spectacular fault block escarpments along the eastern edge of the southern Sierra.

The Sierra Nevada has a significant history. The California Gold Rush occurred in the western foothills from 1848 through 1855. Due to inaccessibility, the range was not fully explored until 1912.

en.wikipedia.org/wiki/Sierra_Nevada_(U.S.)

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Date
Source Highland Peak, Sierra Nevada Range, Alpine County, California
Author Ken Lund from Reno, Nevada, USA
Camera location38° 34′ 47.7″ N, 119° 37′ 53.99″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
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This image was originally posted to Flickr by Ken Lund at https://flickr.com/photos/75683070@N00/21384522330. It was reviewed on 4 December 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

4 December 2015

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current04:53, 4 December 2015Thumbnail for version as of 04:53, 4 December 20154,000 × 3,000 (4.43 MB)INeverCry (talk | contribs)Transferred from Flickr via Flickr2Commons

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