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Little Yosemite Valley
Little Yosemite Valley is a smaller 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 Camp at 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 because the granite rocks of Moraine Dome and Sugar Bowl Dome are tougher and more resistant. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washburn 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] |
Broderick Liberty Cap
Broderick is a surname of early medieval English origin and subsequently the Anglicised versions of names of Irish and Welsh origin. It is also a given name. English origin A toponymic name the broad ridge and Bawdrip, a manor near Bridgwater see also Broadribb. Also a patronymic meaning son of Roderick. The name also has ties to the Vikings, mainly connected to the group of Norsemen that settled in England and coexisted with them after their initial raids in 793. The name has been thought to have been derived from a Norse personal name (Brodir). Brodir (meaning "brother"). Or (Red/blood) from the Nordic word "Blodr", roughly translating to "blood brother" or "brother of red hair" some historians believe this was the family name given to some of the Norsemen who stayed behind in England. Irish origin It is an Anglicised form of the Irish ''Ó Bruadair'', meaning "descendant of ''Bruadar''". The Irish ''Bruattar'' /''Bruadar'' /''Brodur'' is first recorded in 853, in the na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Moraines
A moraine is any accumulation of unconsolidated debris (regolith and rock), sometimes referred to as glacial till, that occurs in both currently and formerly glaciated regions, and that has been previously carried along by a glacier or ice sheet. It may consist of partly rounded particles ranging in size from boulders (in which case it is often referred to as boulder clay) down to gravel and sand, in a groundmass of finely-divided clayey material sometimes called glacial flour. Lateral moraines are those formed at the side of the ice flow, and terminal moraines were formed at the foot, marking the maximum advance of the glacier. Other types of moraine include ground moraines (till-covered areas forming sheets on flat or irregular topography) and medial moraines (moraines formed where two glaciers meet). Etymology The word ''moraine'' is borrowed from French , which in turn is derived from the Savoyard Italian ("mound of earth"). ''Morena'' in this case was derived from Proven� ... [...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 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite () is a coarse-grained ( phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite is typical of a larger family of ''granitic rocks'', or '' granitoids'', that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) contain almost no dark minerals. Granite is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Formations In The United States
The following is a partial list of rock formations in the United States, organized by state. Arizona * Antelope Canyon * Canyon de Chelly National Monument **Spider Rock *Cathedral Rock, Red Rock State Park, Sedona * Cathedral Rock (Coconino County, Arizona) * Chaistla Butte *Chiricahua National Monument **Big Balanced Rock **Duck on a Rock **Mushroom Rock **Natural Bridge **Organ Pipe **Pinnacle Balanced Rock **Punch and Judy **Sea Captain * Church Rock *Comb Ridge * Coyote Buttes ** The Wave *Grand Canyon ** Angels Gate ** Angels Window ** Apollo Temple ** Brahma Temple ** Buddha Temple ** Cheops Pyramid ** Chuar Butte ** Coronado Butte ** Deva Temple ** Dox Castle ** Explorers Monument ** Gunther Castle **Holy Grail Temple **Horseshoe Mesa ** Manu Temple **Marsh Butte **Mount Hayden **Mount Sinyella **O'Neill Butte ** Shiva Temple **Sinking Ship **Tower of Ra ** Tower of Set ** Vishnu Temple **Wotans Throne **Zoroaster Temple **Numerous other named buttes, mesas, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half Dome From Little Yosemite Valley
One half ( : halves) is the irreducible fraction resulting from dividing one by two or the fraction resulting from dividing any number by its double. Multiplication by one half is equivalent to division by two, or "halving"; conversely, division by one half is equivalent to multiplication by two, or "doubling". One half often appears in mathematical equations, recipes, measurements, etc. Half can also be said to be one part of something divided into two equal parts. For instance, the area ''S'' of a triangle is computed. :''S'' = × perpendicular height. One half also figures in the formula for calculating figurate numbers, such as triangular numbers and pentagonal numbers: : \frac and in the formula for computing magic constants for magic squares : M_2(n) = \frac \left(n^ + 1\right) The Riemann hypothesis states that every nontrivial complex root of the Riemann zeta function has a real part equal to . One half has two different decimal expansions, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roche Moutonnée
In glaciology, a roche moutonnée (or sheepback) is a rock formation created by the passing of a glacier. The passage of glacial ice over underlying bedrock often results in asymmetric erosional forms as a result of abrasion on the "stoss" (upstream) side of the rock and plucking on the "lee" (downstream) side. These erosional features are seen on scales of less than a metre to several hundred metres.Douglas Benn and David Evans, ''Glaciers & Glaciation,'' Arnold, London, 1st ed. 1998 Etymology The 18th-century Alpine explorer Horace-Bénédict de Saussure coined the term ''Roches moutonnées'' in 1786. He saw in these rocks a resemblance to the wigs that were fashionable amongst French gentry in his era and which were smoothed over with mutton fat (hence ''moutonnée'') so as to keep the hair in place. The French term is often incorrectly interpreted as meaning "sheep rock". Description The contrasting appearance of the erosional stoss and lee aspects is very defined on r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Broderick
Mount Broderick is a summit in Yosemite National Park, United States. With an elevation of , Mount Broderick is the 1573rd highest summit in the state of California. Mount Broderick was named for David C. Broderick, a United States Senator from California. There are rock climbing routes on Mount Broderick. Climbing Mount Broderick requires a wilderness permit, obtainable at all Yosemite visitor centers. References External links Peakbagger on Mount Broderick Mountains of Mariposa County, California Mountains of Northern California {{MariposaCountyCA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Muir Trail
The John Muir Trail (JMT) (Paiute: Nüümü Poyo, ''N-ue-mue Poh-yo'') is a long-distance trail in the Sierra Nevada mountain range of California, passing through Yosemite, Kings Canyon and Sequoia National Parks. From the northern terminus at Happy Isles in Yosemite Valley () and the southern terminus located on the summit of Mount Whitney (), the trail's length is , with a total elevation gain of approximately . For almost all of its length, the trail is in the High Sierra backcountry and wilderness areas. For about , the trail follows the same footpath as the longer Pacific Crest Trail. It is named after John Muir, a naturalist. The vast majority of the trail is situated within designated wilderness. The trail passes through large swaths of alpine and high mountain scenery, and lies almost entirely at or above in elevation. The trail has been described as "America's most famous trail"; the trail sees about 1,500 thru-hiking attempts each year (including Pacific Crest T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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