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Four Mile Trail
Four Mile Trail is a moderate to strenuous trail leading from Yosemite Valley to Glacier Point. The trail begins at the valley floor west of the Swinging Bridge recreation area, and climbs the south side up to Glacier Point, an elevation change of . Four Mile Trail was originally constructed in 1872 and was in length. In the early 1900s the trail was reconstructed and lengthened to , yet the original name remained. This trail is remarkable because it offers views of most of the Yosemite Valley landmarks. The trail begins at the base of the Sentinel Rock. The first four miles are full of grand views of El Capitan and Yosemite Falls, as well as the Merced River as it runs through the valley. The second half of the trail provides several good views of Half Dome Half Dome is a granite dome 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 whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Mile Trailhead With Constrast Mask
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures. In mathematics Four is the smallest composite number, its proper divisors being and . Four is the sum and product of two with itself: 2 + 2 = 4 = 2 x 2, the only number b such that a + a = b = a x a, which also makes four the smallest squared prime number p^. In Knuth's up-arrow notation, , and so forth, for any number of up arrows. By consequence, four is the only square one more than a prime number, specifically three. The sum of the first four prime numbers two + three + five + seven is the only sum of four consecutive prime numbers that yields an odd prime number, seventeen, which is the fourth super-prime. Four lies between the first proper pair of twin primes, three and five, which are the first two Fermat primes, like seventeen, which is the third. On the other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yosemite Valley
Yosemite Valley ( ; ''Yosemite'', Miwok for "killer") is a U-shaped valley, glacial valley in Yosemite National Park in the western Sierra Nevada (U.S.), Sierra Nevada mountains of Central California. The valley is about long and 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 Creek, Tenaya, Illilouette, Yosemite Creek, 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 valley is the main attraction in the park for the majority of visitors and a bustling hub of activity during tourist season in the summer months. Most visitors enter the valley from roads to the west an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier Point
Glacier Point is a viewpoint above Yosemite Valley in the U.S. state of California. It is located on the south wall of Yosemite Valley at an elevation of , above Curry Village. The point offers a superb view of several of Yosemite National Park's well-known landmarks, including Yosemite Valley, Yosemite Falls, Half Dome, Vernal Fall, Nevada Fall, and Clouds Rest. Between 1872 and 1968, it was the site of the Yosemite Firefall. Geology The extreme point of the promontory of Glacier Point is wholly bare, but on the slopes below, in the hollow to the west, and on the wooded slope above, glacial material is abundant. Its glacial origin is definitely proved by the presence in it of rocks derived from Little Yosemite Valley and the Sierra Nevada. There are three types of glacially-deposited rock at Glacier Point: #Most plentiful are rounded boulders and cobbles and angular fragments, all deeply weathered, of Half Dome quartz monzonite, the light-colored granite of which not only Half ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swinging Bridge
Swinging Bridge is a popular destination in Yosemite Valley, California, United States, for swimming, with an excellent view of Yosemite Falls Yosemite Falls is the highest waterfall in Yosemite National Park, dropping a total of from the top of the upper fall to the base of the lower fall. Located in the Sierra Nevada of California, it is a major attraction in the park, especially in .... The land in the area resembles that of a beach. Although official policy does not allow visitors to jump off the bridge, this is sometimes disregarded. The area on both sides of the bridge has mostly shallow water with a few areas of to in depth. The area northeast of the bridge is available for weddings of 20 people or less. No ceremonies are allowed on the bridge. References Buildings and structures in Yosemite National Park Bridges in Mariposa County, California {{Yosemite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Park Service
The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational properties with various title designations. The U.S. Congress created the agency on August 25, 1916, through the National Park Service Organic Act. It is headquartered in Washington, D.C., within the main headquarters of the Department of the Interior. The NPS employs approximately 20,000 people in 423 individual units covering over 85 million acres in all 50 states, the District of Columbia, and US territories. As of 2019, they had more than 279,000 volunteers. The agency is charged with a dual role of preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment. History Yellowstone National Park was created as the first national par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel Rock
Sentinel Rock is a granitic peak in Yosemite National Park, California, United States. It towers over Yosemite Valley, opposite Yosemite Falls. Sentinel Rock lies northwest of Sentinel Dome. How it was formed Sentinel Rock formed when masses of rock split off Yosemite Valley's south-side cliff In geography and geology, a cliff is an area of rock which has a general angle defined by the vertical, or nearly vertical. Cliffs are formed by the processes of weathering and erosion, with the effect of gravity. Cliffs are common on co ..., along steep joints trending nearly east–west. This formed the near-vertical north face of Sentinel Rock.USGS Geology and GeophysicsUSGS Geology and Geophysics accessdate: March 20, 2017 Climbing The most famous climbing route is the '' Steck-Salathé route'', which is rated a A0. Climber Derek Hersey died while attempting to free solo climb Sentinel Rock in 1993. Gallery File:Yosemite National Park, Sentinel Rock.jpg, Northwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Capitan
El Capitan ( es, El Capitán; "the Captain" or "the Chief") is a vertical Rock formations in the United States, rock formation in Yosemite National Park, on the north side of Yosemite Valley, near its western end. The El Capitan Granite, granite monolith is about from base to summit along its tallest face and is a popular objective for rock climbers. Naming The formation was named "El Capitan" by the Mariposa Battalion when they explored the valley in 1851. ''El Capitán'' ("the captain", "the chief") was taken to be a loose Spanish translation of the local Native Americans in the United States, Native American name for the cliff, “Tutokanula” or "Rock Chief" (the exact spelling of Tutokanula varies in different accounts as it is a phonetic transcription of the Miwok, Miwok language). The "Rock Chief" etymology is based on the written account of Mariposa Battalion doctor Lafayette Bunnell in his 1892 book. Bunnell reports that Ahwahneechee Chief Tenaya explained to him, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yosemite Falls
Yosemite Falls is the highest waterfall in Yosemite National Park, dropping a total of from the top of the upper fall to the base of the lower fall. Located in the Sierra Nevada of California, it is a major attraction in the park, especially in late spring when the water flow is at its peak. Triple fall The falls consist of three drops (sections): Upper Yosemite Fall The plunge comprises over half the total drop. Trails from the valley floor and down from other park areas outside the valley lead to both the top and base of Upper Yosemite Fall.<3 The upper fall is formed by the swift waters of Yosemite Creek, which, after meandering through Eagle Creek Meadow, drop over the edge of a hanging valley in a spectacular and deafening show of force. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merced River
The Merced River (), in the central part of the U.S. state of California, is a -long tributary of the San Joaquin River flowing from the Sierra Nevada (U.S.), 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. The river first formed as the Sierra Nevada rose about 10 million years ago, and sediment eroded from its canyon helped form the flat floor of the San Joaquin Valley. Glaciation during the ice ages carved the high elevation parts of the watershed, including Yosemite Valley, into their present shape. Historically, there was an extensive riparian zone which provided habitat for millions of migrating birds, and the river had one of the southernmost runs o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half Dome
Half Dome is a granite dome 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. The granite crest rises more than above the valley floor. Geology The impression from the valley floor that this is a round dome that has lost its northwest half, is just an illusion. From Washburn Point, Half Dome can be seen as a thin ridge of rock, an arête, that is oriented northeast–southwest, with its southeast side almost as steep as its northwest side except for the very top. Although the trend of this ridge, as well as that of Tenaya Canyon, is probably controlled by master joints, 80 percent of the northwest "half" of the original dome may well still be there. Ascents As late as the 1870s, Half Dome was described as "perfectly inaccessible" by Josiah Whitney of the Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenaya Canyon
Tenaya Canyon is a dramatic and dangerous canyon in Yosemite National Park, California, USA, that runs from the outlet of Tenaya Lake 10 miles down to Yosemite Valley, carrying water in Tenaya Creek through a series of spectacular cascades and pools and thence into a deep canyon below Cloud's Rest, a giant granite mountain adjacent to Half Dome. Waterfalls on the creek inside the canyon include Pywiack Cascade (named for Pywiack Dome) and Three Chute Falls, near Mirror Lake. The top of the canyon can be seen from Tioga Pass Road ( Route 120), which goes through Tuolumne Meadows and Tioga Pass. From Olmsted Point (a roadside viewing area), Clouds Rest and Yosemite's signature Half Dome dominate the canyon. At the bottom of the canyon, in Yosemite Valley, lies Mirror Lake, accessible by shuttle bus and a short walk. The Quarter Domes are not far, up Tenaya Canyon. The canyon has no foot trail and is notoriously difficult to navigate, particularly in spring and summer when wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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