The Great Valley, also called the Great Appalachian Valley or Great Valley Region, is one of the major landform features of eastern North America. It is a gigantic trough -- a chain of valley lowlands -- and the central feature of the Appalachian Mountain system. The trough stretches from Canada southwest to Alabama and has been an important north-south route of travel since prehistory. World map showing North America A satellite composite image of North America. ... A rainy day in the Great Smoky Mountains, Western North Carolina The Appalachian Mountains (French: les Appalaches) are a vast system of North American mountains, partly in Canada, but mostly in the United States, forming a zone, from 100 to 300 miles wide, running from Newfoundland and Labrador, Canada, 1...

In its northern section, the Great Valley includes the St. Lawrence River valley in Canada and extends west of the Appalachian ranges of Canada and New England, separating them from the Adirondack Mountains. The Saint Lawrence River (French fleuve Saint-Laurent) is a large west-to-east flowing river in the middle latitudes of North America, connecting the Great Lakes with the Atlantic Ocean. ... This article is about the region in the United States of America. ... Eagle Lake, Adirondack region The Adirondack mountain range is a group of mountains in the northeastern part of New York that runs through Clinton, Essex, Franklin, Hamilton, Herkimer, Lewis, and Warren counties. ...

In its southern section, the Great Valley is regionally referred to as the Valley of Virginia. It is a sub-province of the Ridge and Valley physiographic province, bounded by the Blue Ridge Mountains on the east, and Allegheny Mountains on the west, and is partially interrupted by Massanutten Mountain in Virginia. This portion can itself be subdivided into a string of river basins. From northeast to southwest, these are the Shenandoah Valley, the James River Valley, the Roanoke Valley, the New River Valley, the Holston River Valley, and the Cumberland, and Tennessee River valleys. The Valley of Virginia is a region of karst, with many sinkholes and caverns. Shaded relief map of Cumberland Plateau and Ridge and Valley Appalachians on the Virginia/West Virginia border Appalachian zones in the US - USGS The Ridge-and-valley Appalachians are a belt within the Appalachian Mountains extending from northern New Jersey westward into Pennsylvania and southward into Maryland, West Virginia, Virginia... Continental U.S physiographic regions Legend for map There are eight distinct U. S. physiographic regions within the continental United States. ... Blue Ridge Mountains, Shining Rock Wilderness Area Appalachian Mountain system The Blue Ridge is a mountain chain in the eastern United States, part of the Appalachian Mountains, forming their eastern front from Georgia to Pennsylvania. ... The Allegheny Mountains are a part of the Appalachian mountain range of the eastern United States. ... Massanutten Mountain is a mountain range that runs down the center of the Shenandoah Valley from approximately Frederick County, Virginia in the North, to its highest peak in Rockingham County, Virginia in the South. ... Canoeing on the Shenandoah River near Winchester, VA. The Shenandoah Valley region of western Virginia, from Winchester to Staunton, is bounded by the Blue Ridge mountains to the East and the Allegheny mountains to the West. ... The James River is the name of at least two rivers in the United States. ... Roanoke Valley in southwestern Virginia is an area adjacent to and including the Roanoke River. ... The New River may refer to: The New River, a man-made watercourse in England The New River that flows into the Atlantic Ocean in southeastern North Carolina in the United States. ... The Holston River is a major river system of southwestern Virginia and East Tennessee. ... Length 1,106 km Elevation of the source 480 m Average discharge 3,217 m³/s Area watershed 46,830 km² Origin Oven Fork, Kentucky Mouth Ohio River Basin countries United States The Cumberland River is an important waterway in the southern United States. ... A riverboat passing under the Henley Street Bridge on the Tennessee River The river viewed from the top of Neyland Stadium. ... Karst topography occurs when a landscape is marked by underground drainage patterns. ... Devils Hole near Hawthorne, Florida Sinkholes, also known as sinks, shakeholes or dolina (in the Slovene language dolina means valleys), and cenotes, are formed by the collapse of cave roofs and are a feature of landscapes that are based on limestone bedrock. ... Alternate meanings: Cave (disambiguation) This article is about natural caves; for artificial caves used as dwellings, such as those in north China, see yaodong. ...

The Valley of Virginia includes rich farmland, especially in the valleys of the Cumberland and Shenandoah. It was a main route for settlement and commerce in the United States along the Great Wagon Road, which began in Philadelphia. The Wilderness Road into Kentucky and Tennessee branched off from the Great Wagon Road at present-day Roanoke, Virginia. Today, the main thoroughfare occupying the Valley of Virginia is Interstate 81. The Great Wagon Road, which ran from Pennsylvania to Georgia, was one of the most heavily traveled major routes for settlers in all America. ... Nickname: City of Brotherly Love, Philly, the Quaker City Motto: Philadelphia maneto (Let brotherly love continue) Location in Pennsylvania Coordinates: Country United States State Pennsylvania County Philadelphia Founded October 27, 1682 Incorporated October 25, 1701 Mayor John F. Street (D) Area    - City 369. ... The Wilderness Road was the principal route used by American and immigrant settlers into and across Kentucky for more than fifty years. ... Official language(s) English Capital Frankfort Largest city Louisville Area  Ranked 37th  - Total 40,444 sq mi (104,749 km²)  - Width 140 miles (225 km)  - Length 379 miles (610 km)  - % water 1. ... Official language(s) English Capital Nashville Largest city Memphis Area  Ranked 36th  - Total 42,169 sq mi (109,247 km²)  - Width 120 miles (195 km)  - Length 440 miles (710 km)  - % water 2. ... Roanoke, Virginia as seen at night from the Mill Mountain Star. ... Interstate 81 (abbreviated I-81) is an interstate highway in the eastern part of the United States. ...