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Topic: Allegheny Plateau


  
 Glaciated Allegheny Plateau - Wikipedia, the free encyclopedia
The Glaciated Allegheny Plateau is that portion of the Allegheny Plateau that lies within the area covered by the last glaciation.
In general, the glaciated lies to the north and west of the unglaciated, and forms an arc in northeastern to southeastern Ohio lying between the glacial till plains and the Unglaciated Allegheny Plateau.
The major cities on the Glaciated Allegheny Plateau are Akron and Youngstown.
en.wikipedia.org /wiki/Glaciated_Allegheny_Plateau   (196 words)

  
 Plateau - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-07)
Plateaus, like mesas and buttes, are formed when land has been uplifted by tectonic activity and then eroded by wind or water.
Flat-topped, sheer-sided plateaus, like the tepuis of Guiana, are formed when a section of land is uplifted that is topped with a layer of particularly resistant rock, and underlain by softer rock.
Many areas of the Allegheny Plateau and the Cumberland Plateau, which are at the western edge of the Appalachian Mountains of eastern North America, are called "mountains" but are actually dissected plateaus.
encyclopedia.worldsearch.com /plateau.htm   (409 words)

  
 Allegheny Plateau --  Encyclopædia Britannica
county, southwestern Pennsylvania, U.S., consisting of a hilly region on the Allegheny Plateau bounded to the southeast by the Monongahela and Youghiogheny rivers and to the northeast by the Allegheny River.
The Ohio, Allegheny, and Monongahela rivers converge in the centre of the county to form an area known as the Golden Triangle; this was a strategic point of...
The plateau is 40 to 50 miles (65 to 80 km) wide and lies between the Appalachian Ridge and Valley region to the east and the rolling plains to the west.
www.britannica.com /eb/article-9005779?tocId=9005779   (804 words)

  
 Cumberland Plateau - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-07)
At the Pottsville Escarpment, which is the transition from the Cumberland Plateau to the Bluegrass in the north and the Pennyrile in the south, there are many spectacular cliffs, gorges, rockhouses, natural bridges, and waterfalls.
The sedimentary rocks that compose both plateaus are of Mississippian and Pennsylvanian geological age, composed of near shore sediments washed westward from the original Appalachian Mountains.
Though the plateau is not composed of true mountains, and nowhere is very high, it has some of the most rugged terrain in the eastern United States, and locally is called mountains.
www.peekskill.us /project/wikipedia/index.php/Cumberland_Plateau   (391 words)

  
 Unglaciated Allegheny Plateau - Wikipedia, the free encyclopedia
This is the part of the Allegheny Plateau that lies outside the continental glaciation of the ice ages.
The Ohio River roughly bisects the Unglaciated Allegheny Plateau in roughly a north-northeast to south-southwest direction.
Other significant rivers in the plateau include the Muskingum River in Ohio, the Youghiogheny River and Allegheny River in Pennsylvania, and the Monongahela River and Kanawha River in West Virginia.
en.wikipedia.org /wiki/Unglaciated_Allegheny_Plateau   (250 words)

  
 Silver Plateau   (Site not responding. Last check: 2007-10-07)
Plateaus (or plâteaux), like mesas and buttes, are formed when land has been uplifted by tectonic activity and then eroded by wind or water.
The saucer-shaped plateau is tilted towards the south-east, and is drained by the Mun and Chi rivers, tributaries to the Mekong, which also is the boundary of the area.
The Edwards Plateau is a region of west-central Texas which is bounded by the Balcones Fault to the south and east, the Llano Uplift and the plains region to the north, and the Pecos River to the west.
www.wwwtln.com /finance/165/silver-plateau.html   (1378 words)

  
 Allegheny Mountains - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-07)
The Allegheny Mountains are a part of the Appalachian mountain range located in the eastern United States.
To the east of the Allegheny Mountains (and east of the Allegheny Front) are the Ridge-and-valley Appalachians.
The bedrock of the Alleghenies is mostly sandstone and metamorphosed sandstone, quartzite, which is extremely resistant to weathering.
www.lexington-fayette.us /project/wikipedia/index.php/Allegheny_Mountains   (323 words)

  
 ALLEGHENY PLATEAU FACTS AND INFORMATION   (Site not responding. Last check: 2007-10-07)
The Allegheny Plateau is a large, dissected_plateau area in southern New_York, western Pennsylvania, West_Virginia, and eastern Ohio.
The plateau terminates in the east at the Allegheny_Mountains, which are the highest ridges just west of the Allegheny_Front.
The plateau is bordered on the west by glacial till plains in the north, generally north of the Ohio_River, and the Bluegrass_region in the south, generally south of the Ohio River.
www.amysflowershop.com /Allegheny_Plateau   (204 words)

  
 Allegheny Plateau on Encyclopedia.com   (Site not responding. Last check: 2007-10-07)
The E Allegheny Plateau, known as the Allegheny Mountains or the Alleghenies, has a steep eastward-facing escarpment often called the Allegheny Front (c.1,500-1,600 ft/460-490 m high) and is more rugged than the western portion.
From our magnificent mountain and wilderness regions to the Great Lakes, from the forests and highlands of the Allegheny plateau to wonderful urban waterfront parks, New York is endowed with an incredible diversity of...
Hierarchical comparisons of breeding birds in old-growth conifer-hardwood forest on the Appalachian plateau.
www.encyclopedia.com /html/A/AlleghP1lat.asp   (415 words)

  
 Unglaciated Allegheny Plateau -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-07)
The Unglaciated Allegheny Plateau is located in an arc around southeastern (A midwestern state in north central United States in the Great Lakes region) Ohio into western (A Mid-Atlantic state; one of the original 13 colonies) Pennsylvania and (A state in east central United States) West Virginia.
This area is a dissected plateau, characterized by (A sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)) sandstone, (A sedimentary rock formed by the deposition of successive layers of clay) shale, and many (Fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period) coal seams.
The (A river that is formed in western Pennsylvania and flows westward to become a tributary of the Mississippi River) Ohio River roughly bisects the Unglaciated Allegheny Plateau in roughly a north-northeast to south-southwest direction.
www.absoluteastronomy.com /encyclopedia/U/Un/Unglaciated_Allegheny_Plateau.htm   (310 words)

  
 Allegheny Mountains   (Site not responding. Last check: 2007-10-07)
Allegheny Mountain, along the West Virginia–Virginia border, is the westernmost ridge of the Valley and Ridge Province, and is part of the Allegheny Front.
The balance of the Alleghenies lies across the eastern edge of the Allegheny Plateau, the northern section of the Appalachian Plateau.
The Allegheny Plateau, covering a large area reaching from south of the Mohawk River in New York to south West Virginia and into Ohio and Kentucky, also includes the Catskill and Pocono mountains.
www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0000090.html   (241 words)

  
 Allegheny Plateau and Valley and Ridge   (Site not responding. Last check: 2007-10-07)
The Allegheny Plateau and Valley and Ridge Geologic/Physiographic Provinces
The Allegheny plateau to the west (left) is mostly in green, except in the far west where drops in elevation bring a return to blue colors.
The boundary between the Valley and Ridge and Allegheny Plateau is the Allegheny Front.
csmres.jmu.edu /geollab/vageol/vahist/cumberland.html   (252 words)

  
 Allegheny Mountains. The Columbia Gazetteer of North America. 2000   (Site not responding. Last check: 2007-10-07)
The Alleghenies include several generally parallel NE-SW ridges (Laurel Hill, Chestnut Ridge, Rich, Cheat, and Shavers mts., Negro Mt.), and the highest points in Pa. (Mt. Davis, 3,213 ft/979 m) and W.Va. (Spruce Knob, 4,860 ft/1,481 m).
Formed by folding of the E edge of the Paleozoic sedimentary rocks composing the plateau, the mts.
The name Alleghenies is also often applied to much of the adjoining plateau region (W).
www.bartleby.com /69/54/A03254.html   (156 words)

  
 Appalachian Plateaus   (Site not responding. Last check: 2007-10-07)
The upturned edge of the Appalachian Plateaus, where the horizontal beds of the plateau give way to the folded beds of the Valley and Ridge, is observable in certain places.
The Appalachian Plateaus are composed of two major plateaus, the Allegheny Plateau and the Cumberland Plateau.
A major distinction between the two plateaus is that the northern Allegheny surface was glaciated during the Pleistocene; the southern Cumberland surface was not.
www.radford.edu /~swoodwar/CLASSES/GEOG202/physprov/applat.html   (249 words)

  
 Appalachian Mountains - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-07)
In addition to the true folded mountains, known as the ridge and valley province, the area of dissected plateau to the north and west of the mountains is usually grouped with them.
This includes the Catskill Mountains of southeastern New York, and the Allegheny Plateau of southwestern New York, western Pennsylvania, eastern Ohio and northern West Virginia.
The dissected plateau area is popularly called mountains, especially in eastern Kentucky and West Virginia, and while the ridges are not high, the terrain is extremely rugged.
www.peekskill.us /project/wikipedia/index.php/Appalachians   (990 words)

  
 Great Lakes Ecosystem: 1994 Proceedings of the Midwest Oak Savanna Conferences [Williams]
Allegheny Plateau savannas are maintained by a complex of biotic and abiotic factors that limit woody plant recruitment including heavy browsing of seedlings by deer and small mammals, seasonal microclimatic extremes, spatially limited seed sources, intense competition for light and soil resources with herbaceous plants, and allelopathy (Hough 1945, 1949; Horsley 1977, 1979, 1987).
The structure and diversity of plant communities associated with Allegheny Plateau savannas, particularly those that occur in larger stream valleys, is poorly known.
Studies were conducted in a stream valley savanna along Salmon Creek, Allegheny National Forest (Forest County, Pennsylvania), as part of a larger study of riparian community structure in the unglaciated Allegheny Plateau.
www.epa.gov /glnpo/ecopage/upland/oak/oak94/Proceedings/Williams.html   (1139 words)

  
 Allegheny Plateau. The Columbia Gazetteer of North America. 2000
Allegheny Plateau (A-luh-GAI-nee), dissected plateau, W part of the Appalachian Mts., extending c.500 mi/805 km SW from N Pa. to SW Va., including W Md., rising to 4,860 ft/1,481 m at Spruce Knob, the highest peak in W.Va. The E Allegheny Plateau, known as the Allegheny Mts.
or the Alleghenies, has a steep E-facing escarpment often called the Allegheny Front (c.1,500 ft/460 m–1,600 ft/490 m high) and is more rugged than the W portion.
The plateau, consisting of flat-laying sedimentary rock, has been subsequently eroded to produce a rugged boundary.
www.bartleby.com /69/55/A03255.html   (152 words)

  
 Appalachian Plateau province | The Geology of Virginia   (Site not responding. Last check: 2007-10-07)
Regionally, the Appalachian Plateau lies to the northwest of the Valley and Ridge.
Regional scale folds in the Plateau formed in response to shortening on thrust faults that do not reach the present surface and are rooted to the east in the Valley and Ridge province.
The upper Paleozoic strata of the Plateau are rich in mineral resources such as coal, natural gas, and petroleum.
www.wm.edu /geology/virginia/app_plateau.html   (146 words)

  
 Allegheny Plateau   (Site not responding. Last check: 2007-10-07)
A plateau is a raised, level piece of land.
The Appalachian Plateau region of Virginia is sometimes called the "toe of the boot." Its major landform is a plateau which makes this region higher than the Ridge and Valley Region.
The land of the Appalachian Plateau Region is rugged and covered with forests and valuable coal fields.
www.scott.k12.va.us /martha2/Allegheny.htm   (157 words)

  
 Ohio - Western Allegheny Plateau Ecoregion   (Site not responding. Last check: 2007-10-07)
This vegetation is the lifeblood of the Western Allegheny Plateau ecoregion, providing critical habitat for a diversity of plants, animals and natural communities.
In the unglaciated portion of the Western Allegheny Plateau, the Teays River was a pre-glacial river that once flowed south to north across Ohio.
Glade Wetland is in the southern, unglaciated portion of the Western Allegheny Plateau Ecoregion.
nature.org /wherewework/northamerica/states/ohio/preserves/art6680.html   (620 words)

  
 Northeastern Naturalist: Riparian vegetation survey of four small streams in northwestern Pennsylvania
Riparian habitat is abundant in the nonglaciated Allegheny Plateau of northwestern Pennsylvania.
The goal of this study was to examine the species composition and richness of the riparian vegetation of four small streams in the nonglaciated Allegheny Plateau of northwestern Pennsylvania.
This study was conducted in the Allegheny National Forest (41 deg 45' N, 79 00' W), located within the nonglaciated Allegheny Plateau Physiographic Province of northwestern Pennsylvania.
www.findarticles.com /p/articles/mi_qa3845/is_199801/ai_n8807227   (1235 words)

  
 Appalachian origins revealed through the "coal-rank thermometer"
Rather, they are worn-away remnants of a once-high alpine plateau-- worn away like the teeth of an old horse by the elements of wind, rain, and ice over the past 200 million years.
The Allegheny Highlands today rise only 3,000-6,000 feet in elevation, and the adjacent Allegheny Plateau to the west-- now reduced to a mosaic of twisted drainage courses separated by erosional remnants unapologetically also called "mountains"-- reaches elevations of only about 1,000-2,500 feet.
This physiographic Tibet known as the Allegheny Plateau was upthrust 250 million years ago from the great wedge of deltaic sediments deposited during the earlier Devonian and Carboniferous geologic periods.
www.clearlight.com /~mhieb/WVFossils/coal_rank.html   (790 words)

  
 Plateau   (Site not responding. Last check: 2007-10-07)
A dissected plateau may also be formed, usually on a comparatively small scale, by the levelling of terrain by planing and deposition beneath an ice sheet or perhaps, an ice cap.
Subsequently, during the same or a later glacial, the margins of the glacial till plain are removed by glaciers, leaving the plateau into which erosion by water incises valleys.
Such a plateau may be level or gently sloping but may be distinguished by the till caps on its hills.
www.worldhistory.com /wiki/P/Plateau.htm   (489 words)

  
 Physiographic/Geologic Provinces of Virginia
This province lies east of the Allegheny Plateau and west of the Blue Ridge; its western boundary is known as the Allegheny Front and marks an abrupt change from the flat lying rocks of the plateau to the folded/faulted rocks in the valley and ridge.
The Allegheny Front boundary can be seen in the Cumberland image as a northeast to southwest diagonal trend separating the parallel blue and green valleys and ridges in the east from the dominantly flat lying green part in the west.
The exceptions are the Allegheny Plateau and the Coastal Plain.
csmres.jmu.edu /geollab/vageol/vahist/PhysProv.html   (3028 words)

  
 Pennsylvania Allegheny Plateau Region   (Site not responding. Last check: 2007-10-07)
The hikes in the Allegheny Plateau Region are located in Allegheny National Forest and many state forests and state parks between highway 62 and highway 15 in north-central Pennsylvania.
At this Allegheny National Forest hiking and wildlife viewing area, closed roads, reseeded tracks, and foot trails introduce the site’s gentle, mostly open terrain dotted by fifteen pond impoundments...
This 8,663-acre roadless area in Allegheny National Forest represents the sole landlocked federal wilderness in all of Pennsylvania, New York, Ohio, Maryland, and New Jersey.
www.trails.com /index/Hiking/Pennsylvania/Allegheny-Plateau-Region   (691 words)

  
 Appalachian Plateau province for Students & Teachers | The Geology of Virginia   (Site not responding. Last check: 2007-10-07)
It lies to the northwest of the Valley & Ridge province.
Although some parts of the Plateau are relatively flat, there are many valleys and stream hollows, making it much of the Appalachian Plateau very hilly and rugged.
The upper Paleozoic layers of the Plateau are rich in mineral resources like coal, natural gas, and petroleum.
www.wm.edu /geology/virginia/app_plateau_kids.html   (167 words)

  
 Whitewater rafting in West Virginia-Gauley River-New River-WV outdoor adventure vacations with North American River ...   (Site not responding. Last check: 2007-10-07)
In the Potomac Section, the land slopes upward from the Valley of Virginia in the East to the Allegheny Highlands in the West.
To the west of the Allegheny Highlands is the Allegheny Plateau.
As the rivers tumble down off the plateau, they encounter boulders, rocks and constrictions that create rapids and whitewater as they follow the path of least resistance heading down the general westward slope and making their way to the Gulf of Mexico.
www.narr.com /allegheny.cfm   (732 words)

  
 Terrestrial Ecoregions -- Allegheny Highlands forests (NA0401)
The forests of the Allegheny Highlands are moderately fragmented, with some connectivity, clusters of habitat fragments, and an intervening landscape that allows for dispersal of many taxa through some parts of the ecoregion.
The Allegheny Highland Forests are demarcated from surrounding hardwood forests by elevation.
Omernik divides the region in four parts: the Northern Appalachian Plateau and Upland, the North Central Appalachians, the Western Allegheny Plateau, and the Erie/Ontario Lake Plain.
www.worldwildlife.org /wildworld/profiles/terrestrial/na/na0401_full.html   (875 words)

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