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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] |
Steck-Salathé Route (Sentinel Rock)
The Steck-Salathé Route is a big wall traditional climbing route up Sentinel Rock. History The route was first climbed, in extremely hot weather with minimal water, from June 30 - July 4, 1950, by Allen Steck and John Salathé, up the north face of Sentinel Rock in Yosemite Valley. They climbed mostly free using occasional direct aid pitons on some pitches, and a blank wall halfway up required a 30-foot bolt ladder. It was the longest and most difficult route in Yosemite in 1950. The route was repeated several times in the 50s using less and less aid. In 1959, Royal Robbins and Tom Frost did it all free except for the short bolt ladder, producing the most strenuous long free climb in America, with 6 pitches of 5.10a or 5.9, and many tiring 5.8 leads. In 1970, Steve Wunsch and Jim Erickson discovered a long finger/hand-size crack to the left of the bolt ladder, adding yet another 5.9+ pitch, which allowed the wall to be climbed totally free. In 1973, Henry Barber made the fi ... [...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] |
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] |
Mountains Of Yosemite National Park
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Mariposa County, California
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychology Today
''Psychology Today'' is an American media organization with a focus on psychology and human behavior. It began as a bimonthly magazine, which first appeared in 1967. The ''Psychology Today'' website features therapy and health professionals directories and hundreds of blogs written by a wide variety of psychologists, psychiatrists, social workers, medical doctors, anthropologists, sociologists, and science journalists. Online presence and magazine circulation ''Psychology Today'' is among the oldest media outlets with a focus on behavioral science. Its tagline is “Here to Help” and its mission is to cover all aspects of human behavior so as to help people better manage their own health and wellness, adjust their mindset, and manage a range of mental health and relationship concerns. ''Psychology Today'' content and its therapist directory are found in 20 countries worldwide. ''Psychology Today'''s therapist directory is the most widely used and allows users to sort th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Solo
Free solo climbing, or free soloing, is a form of technical ice or rock climbing where the climbers (or ''free soloists'') climb alone without ropes, harnesses or other protective equipment, forcing them to rely entirely on their own individual preparation, strength, and skill. Free soloing is the most dangerous form of climbing, and unlike bouldering, free soloists climb above safe heights, where a fall can very likely be fatal. Though many climbers have attempted free soloing, it is considered "a niche of a niche" reserved for the sport's elite, which has led many practitioners to stardom within both the media and the sport of rock climbing. "Free solo" was originally a term of climber slang, but after the popularity of the Oscar-winning film '' Free Solo'', Merriam-Webster officially added the word to their English dictionary in September 2019. Public view Many climbing communities praise the ascents, while others have concerns regarding the danger involved and the message t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derek Hersey
Derek Geoffrey Hersey (26 October 1956 – 28 May 1993) (Gives Hersey's date of death incorrectly as 20 May 1993.) was a British rock climber and for many years an active participant in the Boulder, Colorado climbing scene. Climbing specialization Hersey specialized in unroped " free solo" climbing, often in the 5.10–5.11 range; he died during such a free solo climb. Few climbers have tried to repeat his achievements, which include many of Colorado's hardest traditional routes. Background Originally from Stretford, Greater Manchester, England, Hersey referred to Eldorado Canyon as his 'office', where he could be seen on any day of the week, if not on a road trip to Yosemite National Park or elsewhere. He also referred to Boulder, Colorado's Liquor Mart as 'The Shrine', and described his climbing-chalk bag as 'my bag of courage'. Hersey was featured in ''Climbing Magazine''''Climbing'', April/May 1992, quoted in Ghiglieri and Farabee. and posthumously in the film ''Front R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade (climbing)
In rock climbing, mountaineering, and other climbing disciplines, climbers give a grade to a climbing route or boulder problem, intended to describe concisely the difficulty and danger of climbing it. Different types of climbing (such as sport climbing, bouldering or ice climbing) each have their own grading systems, and many nationalities developed their own, distinctive grading systems. There are a number of factors that contribute to the difficulty of a climb, including the technical difficulty of the moves, the strength, stamina and level of commitment required, and the difficulty of protecting the climber. Different grading systems consider these factors in different ways, so no two grading systems have an exact one-to-one correspondence. Climbing grades are inherently subjective.Reynolds Sagar, Heather, 2007, ''Climbing your best: training to maximize your performance'', Stackpole Books, UK, 9. They may be the opinion of one or a few climbers, often the first ascensioni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually composed of rock that is resistant to weathering and erosion. The sedimentary rocks that are most likely to form cliffs include sandstone, limestone, chalk, and dolomite. Igneous rocks such as granite and basalt also often form cliffs. An escarpment (or scarp) is a type of cliff formed by the movement of a geologic fault, a landslide, or sometimes by rock slides or falling rocks which change the differential erosion of the rock layers. Most cliffs have some form of scree slope at their base. In arid areas or under high cliffs, they are generally exposed jumbles of fallen rock. In areas of higher moisture, a soil slope may obscure the talus. Many cliffs also fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel Dome
Sentinel Dome is a granite dome in Yosemite National Park, United States. It lies on the south wall of Yosemite Valley, southwest of Glacier Point and northeast of Profile Cliff. Sentinel Dome is known for a Jeffrey Pine that grew from its peak (see photograph). The pine was photographed as early as 1867 by Carleton Watkins, and was the subject of a well-known photograph by Ansel Adams. The tree died during the drought of 1976, but remained standing until August 2003. History The original Native American name of Sentinel Dome, in the Southern Sierra Miwok language, was "Sakkaduch". The Bunnell survey named it "South Dome", but the Whitney survey renamed it Sentinel Dome (from its likeness to a watch-tower). The view from the top offers a 360 degree view of Yosemite Valley and surroundings. One can see Half Dome, El Capitan, Yosemite Falls, North Dome, Basket Dome, and much more. Sentinel Dome provides a 360 degree view of the night sky and it and nearby Glacier Point are p ... [...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] |
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