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Quarter Domes
West Quarter Dome is a granodiorite dome, in the Tenaya Canyon area of Yosemite National Park. It is composed of Half Dome Granodiorite. There are two domes, ''West Quarter Dome'' and ''East Quarter Dome'', and they are right next to each other. Ansel Adams took a photo, ''Glacial Erratic on East Quarter Dome Showing Half Dome in Background,'' on East Quarter Dome. On the locale, and rock climbing The Quarter Domes are a bit up Tenaya Canyon, are across from Half Dome and Clouds Rest, thus are above Yosemite Valley, quite near to Little Yosemite Valley. The Quarter Domes offer rock climbing routes, though the approach is difficult. One well-known route is ''The North Face'', which Yvon Chouinard and Tom Frost Thomas "Tom" M. Frost (June 30, 1936 – August 24, 2018) was an American rock climber known for big wall climbing first ascents in Yosemite Valley. He was also a photographer and climbing equipment manufacturer. Frost was born in Hollywood, Cal ... first climbed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yosemite National Park
Yosemite National Park ( ) is an American national park in California, surrounded 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 an area of and sits in four County, countiescentered in Tuolumne County, California, Tuolumne and Mariposa County, California, Mariposa, extending north and east to Mono County, California, Mono and south to Madera County, California, Madera County. Designated a World Heritage Site in 1984, Yosemite is internationally recognized for its granite cliffs, waterfalls, clear streams, Sequoiadendron giganteum, giant sequoia groves, lakes, mountains, meadows, glaciers, and Biodiversity, biological diversity. Almost 95 percent of the park is designated National Wilderness Preservation System, wilderness. Yosemite is one of the largest and least fragmented habitat blocks in the Sierra Nevada, and the park supports a diversity of plants and animals. The ... [...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] |
Tom Frost
Thomas "Tom" M. Frost (June 30, 1936 – August 24, 2018) was an American rock climber known for big wall climbing first ascents in Yosemite Valley. He was also a photographer and climbing equipment manufacturer. Frost was born in Hollywood, California, and died in Oakdale, California. Rock climbing and mountaineering Frost grew up in Newport, California and was a sailing champion as a teenager, winning the Snipe National Championship in 1953 and 1954. In 1958, he graduated with a degree in engineering from Stanford University, where he was a member of the Stanford Alpine Club. Frost began making first ascents in Yosemite in 1958. In 1960, he made the second ascent of The Nose on El Capitan in Yosemite Valley, a route pioneered by Warren Harding in 1958. He climbed with Royal Robbins, Chuck Pratt and Joe Fitschen. In 1961, Frost and Yvon Chouinard visited the Tetons, and made the first ascent of the northeast face of Disappointment Peak, its difficulty rated IV, 5.9, A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yvon Chouinard
Yvon Chouinard (born November 9, 1938) is an American rock climber, environmentalist, philanthropist and outdoor industry businessman. His company, Patagonia, is known for its commitment to protecting the environment. Chouinard is also a surfer, kayaker, and falconer and is particularly fond of '' tenkara'' fly-fishing.''Fly Rod and Reel'' magazine, "Simple Gifts", by Yvon Chouinard, Oct/Nov '09 He has written about climbing issues and ethics and on mixing environmentalism and business. Early life Chouinard's father was a French-Canadian handyman, mechanic, and plumber. In 1947, Yvon and his family moved from Lewiston, Maine to Southern California. They were Catholic. His early climbing partners included Royal Robbins and Tom Frost.Yvon Chouinard, , Outside Online A |
Rock Climbing Route
A climbing route is a path by which a climber reaches the top of a mountain, rock, or ice wall. Routes can vary dramatically in difficulty and grade; once committed to that ascent, it can sometimes be difficult to stop or return. Choice of route can be critically important. Guidebooks, if available, are helpful in providing detailed diagrams and photographs of routes. In the earliest days of hillwalking and mountaineering, climbers got to the top by whatever means got them there. Little information about how they did it is available. During the 19th century, as explorers of the Alps tried ever harder summits, it became clear that choosing an eastern face over a southwestern ridge could spell the difference between success or failure. One example was the first ascent of the Matterhorn, which had been repeatedly and unsuccessfully attempted via the southern side. The strata there tended to slope down and away while the rocks of the northeastern ridge (the one closest to Zerma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Yosemite Valley
Little Yosemite Valley is a smaller Glacial valley#Glacial valleys, glacial valley upstream in the Merced River drainage from the Yosemite Valley in Yosemite National Park. The Merced River meanders through the long flat valley, draining out over Nevada Fall and Vernal Fall before emptying into the main Yosemite Valley. It can be reached by a day hike from the main valley, and is the most popular area in the Yosemite Wilderness. The Valley provides access to nearby destinations such as the back side of Half Dome, Clouds Rest and the High Sierra Camps, High Sierra Camp at High Sierra Camps#Merced Lake High Sierra Camp, Merced Lake. Little Yosemite Valley is a tread on the glacial stairway of the Merced River that runs from Yosemite Valley up to Mount Lyell, gaining some of vertical elevation over and is situated some in elevation above Yosemite Valley proper. Geology The north wall of Little Yosemite has not been subject to the same kinds of glacial planing as the south wall ... [...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] |
Clouds Rest
Clouds Rest is a mountain in Yosemite National Park east northeast of Yosemite Village, California. Although there are many peaks in the park having far greater elevation, the proximity of Clouds Rest to the valley gives it a very high degree of visual prominence. Geography The summit can be reached by a trail hike from Tioga Pass Road or a trail hike from Happy Isles by way of Little Yosemite Valley. There are also several technical routes available. Clouds Rest is an arête, a thin, almost knife-like, ridge of rock formed when glaciers eroded away solid rock to form Tenaya Canyon and Little Yosemite Valley. The northwest face, mostly solid granite, rises above Tenaya Creek. History Lafayette H. Bunnell, a medical doctor with the Mariposa Battalion Mariposa Battalion was a California State Militia unit formed in 1851 to defeat the Ahwahnechee and Chowchillas in the Mariposa War, a part of the California genocide. After a force under Mariposa County Sheriff James Burney ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ansel Adams
Ansel Easton Adams (February 20, 1902 – April 22, 1984) was an American landscape photographer and environmentalist known for his black-and-white images of the American West. He helped found Group f/64, an association of photographers advocating "pure" photography which favored sharp focus and the use of the full tonal range of a photograph. He and Fred Archer developed an exacting system of image-making called the Zone System, a method of achieving a desired final print through a deeply technical understanding of how tonal range is recorded and developed during exposure, negative development, and printing. The resulting clarity and depth of such images characterized his photography. Adams was a life-long advocate for environmental conservation, and his photographic practice was deeply entwined with this advocacy. At age 12, he was given his first camera during his first visit to Yosemite National Park. He developed his early photographic work as a member of the Sierra C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mariposa County, California
Mariposa County () is a county in the U.S. state of California. As of the 2020 U.S. Census, the population was 17,131. The county seat is Mariposa. It is located in the western foothills of the Sierra Nevada mountains, north of Fresno, east of Merced, and southeast of Stockton. The county's eastern section is the central portion of Yosemite National Park. There are no incorporated cities in Mariposa County; however, there are communities recognized as census-designated places for statistical purposes. It also has the distinction of having no actual traffic signals anywhere in the county. History Mariposa County was one of the original counties of California, created at the time of statehood in 1850. While it began as the state's largest county, territory that was once part of Mariposa was ceded over time to form all or part of twelve other counties, including all of Merced, Madera, Fresno, Tulare, Kings, and Kern; and parts of San Benito, Mono, Inyo, San Bernardino, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half Dome Granodiorite
Half Dome Granodiorite is granodiorite (see also granite) found in a region on and near Half Dome, in Yosemite National Park, California, United States. The granodiorite forms part of the Tuolumne Intrusive Suite (aka Tuolumne Batholith), one of the four major intrusive suites within the Sierra Nevada. Mineralogy The granodiorite has large crystals of biotite, hornblende, and both feldspars — orthoclase and plagioclase. The space between crystals tends to be filled with quartz. The hornblende tends to have large, over rectangular crystals. The biotite forms hexagonal "blocks," up to across. A knife blade can peel the edges. Sphene is found in Half Dome Granodiorite. The grains are honey-colored, and large at across. Uranium is also present. From petrographic observation, the average mineral proportion of non-layered rocks of Half Dome Granodiorite is 45% plagioclase feldspar, 25% quartz, 8% biotite, 15% K-feldspar, 5% hornblende, 1% titanite, and 1% magnetite. Age ... [...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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