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- Appalačské hřbety a údolí (anglicky Ridge and Valley Appalachians) je pásmo hřebenů a údolí v Appalačském pohoří.Jedná se také o fyzickogeografický region v rámci Appalačského pohoří.Appalačské hřbety a údolí se nachází při východním pobřeží Spojených států amerických, ve státech New York, New Jersey, Pensylvánie, Maryland, Západní Virginie, Virginie, Tennessee, Georgia a Alabama. (cs)
- The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian division and are also a belt within the Appalachian Mountains extending from southeastern New York in the north through northwestern New Jersey, westward into Pennsylvania through the Lehigh Valley, and southward into Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama. They form a broad arc between the Blue Ridge Mountains and the Appalachian Plateau physiographic province (the Allegheny and Cumberland plateaus). They are characterized by long, even ridges, with long, continuous valleys in between. The river valleys were areas of indigenous settlements for thousands of years. In the historic period, the Cherokee people had towns along many of the rivers in western South Carolina and North Carolina, as well as on the western side of the Appalachian Mountains in present-day Tennessee. Similarly, the Catawba people occupied areas along the upper Catawba River in Western North Carolina, to the east of Cherokee County. The ridge and valley system presents an important obstacle to east–west land travel even with today's technology. It was a nearly insurmountable barrier to European-American migrants who walked or rode horses traveling west to settle the Ohio Country, and later the Northwest Territory and Oregon Country. In the era when animal power dominated transportation, there was no safe way to cross east–west in the middle of the range; crossing was only possible nearer its extremes except for a few rough passages opened mid-range during the colonial era, such as Cumberland Gap, Braddock's Road and Forbes Road. These were later improved as America's first National Roads (respectively Wilderness Road, Cumberland Road, Lincoln Highway or designated U.S. 40 and U.S. 30 in later years). Early settlers of the Ohio country tended to enter it via the Ohio River; river systems were the most important transportation corridors. It was difficult in the late 19th and 20th centuries to construct railroads and modern highways through this area. (en)
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| rdfs:comment
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- Appalačské hřbety a údolí (anglicky Ridge and Valley Appalachians) je pásmo hřebenů a údolí v Appalačském pohoří.Jedná se také o fyzickogeografický region v rámci Appalačského pohoří.Appalačské hřbety a údolí se nachází při východním pobřeží Spojených států amerických, ve státech New York, New Jersey, Pensylvánie, Maryland, Západní Virginie, Virginie, Tennessee, Georgia a Alabama. (cs)
- The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian division and are also a belt within the Appalachian Mountains extending from southeastern New York in the north through northwestern New Jersey, westward into Pennsylvania through the Lehigh Valley, and southward into Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama. They form a broad arc between the Blue Ridge Mountains and the Appalachian Plateau physiographic province (the Allegheny and Cumberland plateaus). They are characterized by long, even ridges, with long, continuous valleys in between. (en)
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