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Cumberland Gap
The Cumberland Gap is a pass through the long ridge of the Cumberland Mountains, within the Appalachian Mountains, near the junction of the U.S. states of Kentucky, Virginia, and Tennessee. It is famous in American colonial history for its role as a key passageway through the lower central Appalachians. Long used by Native American nations, the Cumberland Gap was brought to the attention of settlers in 1750 by Thomas Walker, a Virginia physician and explorer. The path was used by a team of frontiersmen led by Daniel Boone, making it accessible to pioneers who used it to journey into the western frontiers of Kentucky and Tennessee. It was an important part of the Wilderness Road and is now part of the Cumberland Gap National Historical Park. Geography The Cumberland Gap is one of many passes in the Appalachian Mountains, but the only one in the continuous Cumberland Mountain ridgeline. It lies within Cumberland Gap National Historical Park and is located on the border of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrogate, Tennessee
Harrogate is the largest city in Claiborne County, Tennessee, United States. It is adjacent to Cumberland Gap National Historical Park. The community has been known as "Harrogate" since the 19th century, but did not incorporate by that name until 1993.Tennessee Municipal Technical Advisory Service(accessed July 21, 2007) making Harrogate the largest city in Claiborne County. 2020 census As of the 2020 United States census, there were 4,400 people, 1,678 households, and 1,039 families residing in the city. Education and culture Lincoln Memorial University, a private four-year co-educational liberal arts college founded in 1897, is located in Harrogate. Its Abraham Lincoln Library and Museum houses a large collection of memorabilia relating to the school's namesake, Abraham Lincoln and the Civil War. Lincoln Memorial is the parent institution of the Debusk College of Osteopathic Medicine, the first osteopathic medical school in Tennessee. Public schools in Harrogate are Ellen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumberland Narrows
The Cumberland Narrows (or simply The Narrows) is a water gap in western Maryland in the United States, just west of Cumberland. Wills Creek cuts through the central ridge of the Wills Mountain Anticline at a low elevation here between Wills Mountain to the north and Haystack Mountain to the south. Cliffs and talus of the two mountains' Tuscarora quartzite caprock are prominent within the Narrows. A prominent rocky outcropping at the south end of Wills Mountain in the Cumberland Narrows is known as Lover's Leap. The geological features of the Narrows provide Cumberland a western backdrop of the two mountains with a narrow gap between them. Geography The Cumberland Narrows serves as a western gateway from Cumberland to the Appalachian Plateau and the Ohio River Valley beyond. Nemacolin's Path, which later became Old National Road and is now Alternate U.S. 40, passes through the Narrows, along with the former Baltimore and Ohio Railroad's main line between Baltimore/Washington ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumberland Gap Map
Cumberland ( ) is a historic county in the far North West England. It covers part of the Lake District as well as the north Pennines and Solway Firth coast. Cumberland had an administrative function from the 12th century until 1974. From 1974 until 2023, Cumberland lay within Cumbria, a larger administrative area which also covered Westmorland and parts of Yorkshire and Lancashire. In April 2023, Cumberland will be revived as an administrative entity when Cumbria County Council is abolished and replaced by two unitary authorities; one of these is to be named Cumberland and will include most of the historic county, with the exception of Penrith and the surrounding area. Cumberland is bordered by the historic counties of Northumberland to the north-east, County Durham to the east, Westmorland to the south-east, Lancashire to the south, and the Scottish counties of Dumfriesshire and Roxburghshire to the north. Early history In the Early Middle Ages, Cumbria was part of the Kin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilderness Road En
Wilderness or wildlands (usually in the plural), are natural environments on Earth that have not been significantly modified by human activity or any nonurbanized land not under extensive agricultural cultivation. The term has traditionally referred to terrestrial environments, though growing attention is being placed on marine wilderness. Recent maps of wilderness suggest it covers roughly one quarter of Earth's terrestrial surface, but is being rapidly degraded by human activity. Even less wilderness remains in the ocean, with only 13.2% free from intense human activity. Some governments establish protection for wilderness areas by law to not only preserve what already exists, but also to promote and advance a natural expression and development. These can be set up in preserves, conservation preserves, national forests, national parks and even in urban areas along rivers, gulches or otherwise undeveloped areas. Often these areas are considered important for the survival of c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous ( Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its electricity. Some iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pineville, Kentucky
Pineville () is a home rule-class city in Bell County, Kentucky, United States. It is the seat of its county. The population was 1,732 as of the 2010 census. It is located on a small strip of land between the Cumberland River and Pine Mountain. History Pineville is one of the oldest settlements in Kentucky, located at the crossing of the Cumberland River by the Wilderness Road. It was established as Cumberland Ford in 1781 and formed part of Governor Isaac Shelby's land tracts. When Bell County was formed in 1867, Cumberland Ford was formally laid off; local landowner J.J. Gibson's 1869 land grant permitted it to be selected as the county seat, but the courthouse was not completed until 1871.Rennick, Robert. ''Kentucky Place Names''p. 235 University Press of Kentucky (Lexington), 1987. Accessed 1 August 2013. Accessed 25 April 2010. The settlement was renamed "Pineville" in 1870 and formally incorporated in 1873. One of the earliest branches of the Sojourner Truth Woman's Chri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Event
An impact event is a collision between astronomical objects causing measurable effects. Impact events have physical consequences and have been found to regularly occur in planetary systems, though the most frequent involve asteroids, comets or meteoroids and have minimal effect. When large objects impact terrestrial planets such as the Earth, there can be significant physical and biospheric consequences, though atmospheres mitigate many surface impacts through atmospheric entry. Impact craters and Impact structure, structures are dominant landforms on many of the Solar System's solid objects and present the strongest empirical evidence for their frequency and scale. Impact events appear to have played a significant role in the Formation and evolution of the Solar System, evolution of the Solar System since its formation. Major impact events have significantly shaped History of the Earth, Earth's history, and have been implicated in the giant impact theory, formation of the Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shatter Cone
Shatter cones are rare geological features that are only known to form in the bedrock beneath meteorite impact craters or underground nuclear explosions. They are evidence that the rock has been subjected to a shock with pressures in the range of . Morphology Shatter cones have a distinctively conical shape that radiates from the top (''apex'') of the cones repeating cone-on-cone in large and small scales in the same sample. Sometimes they have more of a spoon shape on the side of a larger cone. In finer-grained rocks such as limestone, they form an easily recognizable "horsetail" pattern with thin grooves (''striae''). However, the word "striae" should not be used to describe shatter cones, as that is considered misleading. Coarser grained rocks tend to yield less well developed shatter cones, which may be difficult to distinguish from other geological formations such as slickensides. Geologists have various theories of what causes shatter cones to form, including compress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert S
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of '' Hruod'' ( non, Hróðr) "fame, glory, honour, praise, renown" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin. It is also in use as a surname. Another commonly used form of the name is Rupert. After becoming widely used in Continental Europe it entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta. The Italian, Portuguese, and Spanish form is Roberto. Robert is also a common name in many Germanic languages, including English, German, Dutch, Norwegian, Swedish, Scots, Danish, and Icelandic. It can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from microscopic craters on lunar rocks returned by the Apollo Program and small, simple, bowl-shaped depressions in the lunar regolith to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth. Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Europa, Io and Titan, visible impact craters are less common because they become eroded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorite
A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or Natural satellite, moon. When the original object enters the atmosphere, various factors such as friction, pressure, and chemical interactions with the atmospheric gases cause it to heat up and radiate energy. It then becomes a meteor and forms a Meteoroid#Fireball, fireball, also known as a shooting star; astronomers call the brightest examples "Bolide#Astronomy, bolides". Once it settles on the larger body's surface, the meteor becomes a meteorite. Meteorites vary greatly in size. For geologists, a bolide is a meteorite large enough to create an impact crater. Meteorites that are recovered after being observed as they transit the atmosphere and Impact event, impact the Earth are called meteorite falls. All others are known as meteorite finds. Meteorites have traditiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saunders_Quarry-1.jpg "Click for more on -> Sandstone")
