John Muir Wilderness

John Muir Wilderness is a wilderness area that extends along the crest of the Sierra Nevada in California for about ninety miles, within the Inyo and Sierra National Forests. It was established in 1964 under the Wilderness Act and is named for the naturalist John Muir, and it encompasses roughly 652,793 acres. The wilderness runs along the eastern escarpment of the Sierra from near Mammoth Lakes and Devils Postpile National Monument in the north to Cottonwood Pass near Mount Whitney in the south, and it also spans the Sierra crest north of Kings Canyon National Park, extending on the parks west side down to the Monarch Wilderness.