|
Teton Range
The Teton Range is a mountain range of the Rocky Mountains in North America. It extends for approximately in a north–south direction through the U.S. state of Wyoming, east of the Idaho state line. It is south of Yellowstone National Park, and most of the east side of the range is within Grand Teton National Park. One theory says the early French voyageurs named the range ' ("the three nipples") after the Breast-shaped hill, breast-like shapes of its peaks. Another theory says the range is named for the Teton Sioux (from Thítȟuŋwaŋ), also known as the Lakota people.Ullrich, Jan. (2008). ''New Lakota Dictionary''. Lakota Language Consortium. It is likely that the local Shoshone people once called the whole range ', meaning "many pinnacles". The principal summits of the central massif, sometimes referred to as the Cathedral Group, are Grand Teton (), Mount Owen (Wyoming), Mount Owen (), Teewinot Mountain, Teewinot (), Middle Teton () and South Teton (). Other peaks in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snake River
The Snake River is a major river in the interior Pacific Northwest region of the United States. About long, it is the largest tributary of the Columbia River, which is the largest North American river that empties into the Pacific Ocean. Beginning in Yellowstone National Park, western Wyoming, it flows across the arid Snake River Plain of southern Idaho, the rugged Hells Canyon on the borders of Idaho, Oregon and Washington (state), Washington, and finally the rolling Palouse Hills of southeast Washington. It joins the Columbia River just downstream from the Tri-Cities, Washington, in the southern Columbia Plateau, Columbia Basin. The river's Drainage basin, watershed, which drains parts of six U.S. states, is situated between the Rocky Mountains to the north and east, the Great Basin to the south, and the Blue Mountains (Pacific Northwest), Blue Mountains and High Desert (Oregon), Oregon high desert to the west. The region has a long history of volcanism; millions of years ago ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Owen (Wyoming)
Mount Owen () is the second highest peak in the Teton Range, Grand Teton National Park in the U.S. state of Wyoming. The peak is named after William O. Owen, who organized the first documented ascent of the Grand Teton in 1898. Mount Owen is part of the Cathedral Group of high Teton peaks, a collection of peaks in the central section of the range that are particularly rugged. The long Teton Range is the youngest mountain chain in the Rocky Mountains, and began its uplift 9 million years ago, during the Miocene. Several periods of glaciation have carved Mount Owen and the other peaks of the range into their current shapes. Valhalla Canyon is situated on the west slopes of Mount Owen. Climbing After two failed attempts in 1927 and one in 1928, Mount Owen was first climbed in 1930, and was one of the last of the major Teton peaks to be climbed. Numerous routes have been explored, ranging in difficulty from Yosemite Decimal System, Class 5.1 to 5.10. See also * Geology of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dike (geology)
In geology, a dike or dyke is a sheet of rock that is formed in a fracture of a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies as a sheet intrusion, either cutting across layers of rock or through a contiguous mass of rock. Clastic dikes are formed when sediment fills a pre-existing crack.Essentials of Geology, 3rd Ed, Stephen Marshak Magmatic dikes A magmatic dike is a sheet of igneous rock that cuts across older rock beds. It is formed when magma fills a fracture in the older beds and then cools and solidifies. The dike rock is usually more resistant to weathering than the surrounding rock, so that erosion exposes the dike as a natural wall or ridge. It is from these natural walls that dikes get their name. Dikes preserve a record of the fissures through which most mafic magma (fluid magma low in silica) reaches the surface. They are studied by geologists for the clues they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, 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 dike (geology), 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 diagram, 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) conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gneiss
Gneiss (pronounced ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. This rock is formed under pressures ranging from 2 to 15 kbar, sometimes even more, and temperatures over 300 °C (572 °F). Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct Cleavage (geology), cleavage. Gneisses are common in the ancient crust of Continental Shield, continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss. Description image:Orthogneiss Geopark.jpg, Orthogneiss from the Czech Republic In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding (gneissic banding) but poorly developed schistosity and indistinct Cleavage (geology), cleavage. In other words, it i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson Hole
Jackson Hole (originally called Jackson's Hole by mountain men) is a valley between the Gros Ventre Range, Gros Ventre and Teton Range, Teton mountain ranges in the U.S. state of Wyoming, near the border with Idaho, in Teton County, Wyoming, Teton County. The term "hole" was used by early trappers, or mountain men, as a term for a large mountain valley. These low-lying valleys, surrounded by mountains and containing rivers and streams, are good habitat for North American beaver, beavers and other fur-bearing animals. Jackson Hole is 55 miles (89 km) long by 6-to-13 miles (10-to-21 km) wide and is a graben valley with an average elevation of 6,800 ft (2,100 m), its lowest point being near the southern Grand Teton National Park, park boundary at 6,350 ft (1,940 m). History The valley was used by Native Americans in the United States, Native Americans for hunting and ceremonial purposes. It was not known to harbor year-round human settlement prior to the 1870s. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A '' fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geological maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth's Crust
Earth's crust is its thick outer shell of rock, referring to less than one percent of the planet's radius and volume. It is the top component of the lithosphere, a solidified division of Earth's layers that includes the crust and the upper part of the mantle. The lithosphere is broken into tectonic plates whose motion allows heat to escape the interior of Earth into space. The crust lies on top of the mantle, a configuration that is stable because the upper mantle is made of peridotite and is therefore significantly denser than the crust. The boundary between the crust and mantle is conventionally placed at the Mohorovičić discontinuity, a boundary defined by a contrast in seismic velocity. The temperature of the crust increases with depth, reaching values typically in the range from about at the boundary with the underlying mantle. The temperature increases by as much as for every kilometer locally in the upper part of the crust. Composition File:Elementa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Static Peak
Static Peak () is located in the Teton Range, Grand Teton National Park, in the U.S. state of Wyoming. Located southeast of Buck Mountain, the summit is also east of the Alaska Basin Trail, from a point known as Static Peak Divide, the summit can be climbed in a scramble. Below the summit on the north face, a small remnant glacier persists, sheltered from direct sunlight by steep cliffs. Timberline Lake lies to the north of the peak. Beginning on May 1, 2025, Static Peak will be renamed in honor of Grizzly 399 Grizzly 399 (1996 – October 22, 2024) was a grizzly bear living in Grand Teton National Park and Bridger-Teton National Forest in Wyoming, United States. She was followed by as many as 40 wildlife photographers, and millions of tourists came .... References Mountains of Grand Teton National Park Mountains of Wyoming Mountains of Teton County, Wyoming {{Wyoming-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buck Mountain (Wyoming)
Buck Mountain (elevation: ) is a mountain located in the Teton Range, Grand Teton National Park, Wyoming, immediately southeast of Grand Teton. Description The mountain is the highest summit south of Garnet Canyon and is easily seen from most vantage points in Jackson Hole. Views from the summit offer excellent views of the Cathedral Group to the north. The west slopes of the summit tower are along the Alaska Basin Trail and extend into Caribou-Targhee National Forest and the Jedediah Smith Wilderness, which is the location of Alaska Basin, a popular wilderness camping area for backpackers. Timberline Lake is located on the eastern flanks of the peak. History The first documented summiting by people of European descent was on August 21, 1898, by T.M. Bannon and George Buck, only ten days after Grand Teton was first climbed by another party. Bannon later became the first person to climb Borah Peak, the tallest mountain in the state of Idaho Idaho ( ) is a landloc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Wister
Mount Wister () is located in the Teton Range, Grand Teton National Park, in the U.S. state of Wyoming. The peak is located west of Taggart Lake and to the south of Avalanche Canyon. The mountain is named after famed author Owen Wister Owen Wister (July 14, 1860 – July 21, 1938) was an American writer. His novel ''The Virginian (novel), The Virginian'', published in 1902, helped create the cowboy as a folk hero in the United States and built Wister's reputation as the " ..., an early visitor to the area. Mount Wister was first climbed by Phil Smith in 1928. References Wister Wister Wister {{Wyoming-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Moran
Mount Moran () is a mountain in Grand Teton National Park of western Wyoming, United States, USA. The mountain is named for Thomas Moran, an American western frontier landscape artist. Mount Moran dominates the northern section of the Teton Range rising above Jackson Lake (Wyoming), Jackson Lake. Several active glaciers exist on the mountain with Skillet Glacier plainly visible on the monolithic east face. Like the Middle Teton in the same range, Mount Moran's face is marked by a distinctive basaltic, basalt intrusion known as the Black Dike. Climbing Mount Moran is a massive and impressive mountain which would make it attractive to mountaineers. However, the comparative difficulty of the approach to the climbs makes it a much less popular climb than the Grand Teton and other peaks to the south. No trails to Mount Moran have been maintained for over twenty years, and any approach overland requires a great deal of bushwhacking through vegetation, deadfalls, and bogs along the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
