|5,580 feet (1,700 m)
|Hetch Hetchy watershed, Yosemite National Park, California.
Tiltill Valley is a remote valley in northerwestern Yosemite National Park. It is accessible only to hikers and equestrians. The valley is most easily reached via trail heads in the vicinity of the Hetch Hetchy Valley and Lake Eleanor.The valley provides access to many remote alpine lakes throughout the largely untamed wilderness that defines the northern portion of Yosemite National Park and the adjacent Emigrant Wilderness.
Yosemite National Park is a national park in California. It is bordered on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park is managed by the National Park Service and covers 759,620 acres in four counties – centered in Tuolumne and Mariposa, extending north and east to Mono and south to Madera. Designated a World Heritage Site in 1984, Yosemite is internationally recognized for its cliffs, waterfalls, clear streams, giant sequoia groves, lakes, mountains, meadows, glaciers, and biological diversity. Almost 95 percent of the park is designated wilderness. Yosemite is one of the largest and least fragmented habitat blocks in the Sierra Nevada.
Yosemite Valley is a glacial valley in Yosemite National Park in the western Sierra Nevada mountains of Central California. The valley is about 7.5 mi (12.1 km) long and 3,000–3,500 ft (910–1,070 m) deep, surrounded by high granite summits such as Half Dome and El Capitan, and densely forested with pines. The valley is drained by the Merced River, and a multitude of streams and waterfalls flow into it, including Tenaya, Illilouette, Yosemite and Bridalveil Creeks. Yosemite Falls is the highest waterfall in North America and is a big attraction especially in the spring, when the water flow is at its peak. The valley is renowned for its natural environment and is regarded as the centerpiece of Yosemite National Park.
The Sierra Nevada is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Nevada. The Sierra Nevada is part of the American Cordillera, an almost continuous chain of mountain ranges that forms the western "backbone" of the Americas.
The John Muir Trail (JMT) is a long-distance trail in the Sierra Nevada mountain range of California, passing through Yosemite, Kings Canyon and Sequoia National Parks. It is named after John Muir, a naturalist.
The Ansel Adams Wilderness is a wilderness area in the Sierra Nevada of California, United States. The wilderness spans 231,533 acres (93,698 ha); 33.9% of the territory lies in the Inyo National Forest, 65.8% is in the Sierra National Forest, and the remaining 0.3% covers nearly all of Devils Postpile National Monument. Yosemite National Park lies to the north and northwest, while the John Muir Wilderness lies to the south.
Kings Canyon National Park is an American national park in the southern Sierra Nevada, in Fresno and Tulare Counties, California. Originally established in 1890 as General Grant National Park, the park was greatly expanded and renamed on March 4, 1940. The park's namesake, Kings Canyon, is a rugged glacier-carved valley more than a mile (1,600 m) deep. Other natural features include multiple 14,000-foot (4,300 m) peaks, high mountain meadows, swift-flowing rivers, and some of the world's largest stands of giant sequoia trees. Kings Canyon is north of and contiguous with Sequoia National Park, and both parks are jointly administered by the National Park Service as the Sequoia and Kings Canyon National Parks.
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. The sediment that formed the area first settled in the waters of a shallow sea, and compressive forces from a subduction zone in the mid-Paleozoic fused the seabed rocks and sediments, appending them to the continent. Heat generated from the subduction created island arcs of volcanoes that were also thrust into the area of the park. In time, the igneous and sedimentary rocks of the area were later heavily metamorphosed.
The Merced River, in the central part of the U.S. state of California, is a 145-mile (233 km)-long tributary of the San Joaquin River flowing from the Sierra Nevada into the San Joaquin Valley. It is most well known for its swift and steep course through the southern part of Yosemite National Park, where it is the primary watercourse flowing through Yosemite Valley. The river's character changes dramatically once it reaches the plains of the agricultural San Joaquin Valley, where it becomes a slow-moving meandering stream.
Human habitation in the Sierra Nevada region of California reaches back 8,000 to 10,000 years ago. Historically attested Native American populations, such as the Sierra Miwok, Mono and Paiute, belong to the Uto-Aztecan and Utian phyla. In the mid-19th century, a band of Native Americans called the Ahwahnechee lived in Yosemite Valley. The California Gold Rush greatly increased the number of non-indigenous people in the region. Tensions between Native Americans and white settlers escalated into the Mariposa War. As part of this conflict, settler James Savage led the Mariposa Battalion into Yosemite Valley in 1851, in pursuit of Ahwaneechees led by Chief Tenaya. The California state military forces burned the tribe's villages, destroyed their food stores, killed the chief's sons, and forced the tribe out of Yosemite. Accounts from the Mariposa Battalion, especially from Dr. Lafayette Bunnell, popularized Yosemite Valley as a scenic wonder.
Galen Clark was a Canadian-born American conservationist and writer. He is known as the first European American to discover the Mariposa Grove of Giant Sequoia trees, and is notable for his role in gaining legislation to protect it and the Yosemite area, and for 24 years serving as Guardian of Yosemite National Park.
Tenaya Lake is an alpine lake in Yosemite National Park, located between Yosemite Valley and Tuolumne Meadows. The surface of Tenaya Lake has an elevation of 8,150 feet (2,484 m). The lake basin was formed by glacial action, which left a backdrop of light granite rocks, whose beauty was known to the Native Americans. Today, Tenaya Lake is easily accessible by State Route 120 and is a popular lake for water activities.
Inyo National Forest is a United States National Forest covering parts of the eastern Sierra Nevada of California and the White Mountains of California and Nevada. The forest hosts several superlatives, including Mount Whitney, the highest point in the contiguous United States; Boundary Peak, the highest point in Nevada; and the Ancient Bristlecone Pine Forest, which protects the oldest living trees in the world. The forest, encompassing much of the Owens Valley, was established by Theodore Roosevelt as a way of sectioning off land to accommodate the Los Angeles Aqueduct project in 1907, making the Inyo National Forest one of the least wooded forests in the U.S. National Forest system.
Ostrander Lake is located in Yosemite National Park, approximately 10 miles (16 km) south of Yosemite Valley and 10 miles (16 km) east of the Badger Pass Ski Area, at an elevation of 8,500 feet (2,600 m). The lake is a popular destination for cross-country skiers during the winter. It is the primary source of Bridalveil Creek, which feeds Bridalveil Falls.
Flora Lake is a remote lake located in the northern environs of Yosemite National Park, California, United States. The lake is located in a rugged environment that is only accessible to intrepid hikers.
National Park Service rustic – sometimes colloquially called Parkitecture – is a style of architecture that developed in the early and middle 20th century in the United States National Park Service (NPS) through its efforts to create buildings that harmonized with the natural environment. Since its founding in 1916, the NPS sought to design and build visitor facilities without visually interrupting the natural or historic surroundings. The early results were characterized by intensive use of hand labor and a rejection of the regularity and symmetry of the industrial world, reflecting connections with the Arts and Crafts movement and American Picturesque architecture.
Yosemite National Park is located in the central Sierra Nevada of California. Three wilderness areas are adjacent to Yosemite: the Ansel Adams Wilderness to the southeast, the Hoover Wilderness to the northeast, and the Emigrant Wilderness to the north.
The High Sierra Camps are nine rustic lodging facilities located in two national parks and a national monument in California's Sierra Nevada mountain range. Open most years from June or July to September, they are staffed camps with tent cabins and food service facilities. The backcountry camps receive their supplies by pack mules.
The Tahoe–Yosemite Trail (TYT) is a long-distance trail in the Sierra Nevada mountain range of California. The trail courses 186 miles (299 km) from Meeks Bay at Lake Tahoe to Tuolumne Meadows in Yosemite National Park. The trail is a foot and equestrian path that passes through the Desolation, Mokelumne, Carson-Iceberg, Emigrant, and Yosemite Wilderness Areas and the Meiss Country (Dardanelles) Roadless Area.
The Eastern Sierra is a region in California comprising the eastern side of the Sierra Nevada, which includes Mono and Inyo Counties. The main thoroughfare is U.S. Route 395, which passes through Bridgeport, Lee Vining, Bishop, Big Pine, Independence, Lone Pine, and Olancha, with Bishop being the largest city in the area. It is sparsely populated but well known for its scenery; major points of interest include Mono Lake, Bodie, Mammoth Lakes, Manzanar, Mount Whitney and parts of Yosemite National Park, Sequoia National Park, Kings Canyon National Park and Death Valley National Park.
The protected areas of the Sierra Nevada, a major mountain range located in the U.S. states of California and Nevada, are numerous and highly diverse. Like the mountain range itself, these areas span hundreds of miles along the length of the range, and over 14,000 feet of elevation from the lowest foothills to the summit of Mount Whitney.