Appalachian Plateau

Appalachian Plateau. The Appalachian Plateau is a vast dissected plateau region of the Appalachian Mountains, stretching from southern New York through parts of Pennsylvania, Ohio, West Virginia, Kentucky, Tennessee, Alabama, and into northwestern Georgia. It is characterized by its rugged, hilly terrain, deep river gorges, and extensive coal deposits. As the westernmost physiographic province of the Appalachians, it is primarily defined by nearly horizontal sedimentary rock layers, distinct from the folded mountains to the east.

Geography and Geology

The region is a classic example of a dissected plateau, where relatively flat-lying strata of Pennsylvanian-age sandstone, shale, and conglomerate have been deeply cut by erosion from rivers like the New River and the Tennessee River. This process has created a landscape of narrow ridges, steep valleys, and dramatic escarpments, such as the Allegheny Front, which forms its eastern boundary. The plateau's structure is part of the Allegheny Plateau, with the southern section often designated separately as the Cumberland Plateau. Notable geological features include the Pine Mountain thrust fault and the extensive cave systems within the Mammoth Cave National Park region, developed in the region's limestone layers.

Ecology and Climate

The plateau hosts a diverse temperate forest ecosystem, primarily a mix of Appalachian mixed mesophytic forests and Central Appalachian dry oak-pine forests. This biodiversity hotspot is home to species like the Cerulean warbler, Eastern spotted skunk, and endemic cave fauna such as the Kentucky cave shrimp. The climate is humid continental in the north and humid subtropical in the south, with significant variation due to elevation. Higher elevations experience cooler temperatures and greater precipitation, supporting unique habitats like the red spruce forests atop Black Mountain and the high-elevation heath balds of the Cranberry Wilderness.

Natural Resources and Economic Activity

Historically, the region's economy has been dominated by extractive industries, most notably bituminous coal mining, which fueled the industrialization of the Northeastern United States and the Great Lakes region. Major coalfields include the Pittsburgh Coal Seam and the Central Appalachian coalfields. Other significant resources have included natural gas, petroleum, timber, and iron ore. While mining and logging remain active, economic diversification has grown, with increased reliance on manufacturing, agriculture, and tourism centered around state parks like Breaks Interstate Park and the Big South Fork National River and Recreation Area.

Human History and Settlement

Early indigenous peoples, including cultures associated with the Adena culture and later the Cherokee and Shawnee, inhabited the region. European exploration and settlement increased following expeditions like those of Thomas Walker through the Cumberland Gap. The plateau became a corridor for westward expansion, exemplified by the Wilderness Road blazed by Daniel Boone. The late 19th and early 20th centuries saw rapid industrialization tied to coal, leading to the growth of company towns and labor struggles, including events like the Battle of Blair Mountain. Cultural traditions, including Appalachian music and craft, are deeply rooted in this history.

Major Subregions and Landmarks

The plateau is divided into several notable subregions. In the north, the Allegheny Plateau encompasses areas like the Pocono Mountains and the Catskill Mountains. The central section includes the Kanawha River basin and the Tug Fork valley. The southern Cumberland Plateau features landmarks such as Lookout Mountain, Cumberland Falls, and Fall Creek Falls. Significant protected areas include the Daniel Boone National Forest, Wayne National Forest, and the Land Between the Lakes National Recreation Area. The New River Gorge National Park and Preserve, with its iconic New River Gorge Bridge, is a premier natural and recreational landmark.

Category:Plateaus of the United States Category:Appalachian Mountains Category:Physiographic provinces