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Georgia Geography: The Land
Geography and Landforms of GeorgiaGeorgia falls within five major physiographic regions: the Blue Ridge Mountains in the northeast, the Ridge and Valley Providence and the Cumberland Plateau in the northwest, the Piedmont across Georgia's center, and the Coastal Plain in the south. Elevations range from sea level to 4,784 feet at Brasstown Bald in the Blue Ridge Mountains. The Blue Ridge mountain area features the southern terminus of the Appalachian Trail, a 2,100 mile hiking trail ending in Maine. The mountain range's peaks were once higher than the Rockies, but some 100 million years of erosion has worn them down to about a quarter of their original height. Nonetheless, the mountains attract millions of visitors each year, particularly in the summer and fall.
Georgia is the largest state east of the Mississippi River and is 21st in size among the other states.
All of Georgia's rivers are formed either within the state or along its boundaries; no river flows into Georgia from another state. The Altamaha, Savannah, and Chattahoochee have the highest average flow rates. Among other major rivers are the Flint, Oconee, Ocmulgee, Coosa, Ogeechee, and Satilla. Recently, there has been a growing concern regarding Georgia's water resources due to drought conditions and population growth.
Georgia is made up of these Physiographic Areas
South Atlantic Coastal Plain
The South Atlantic Coastal Plain covers northeastern Florida, the southern half of Georgia and the eastern halves of South Carolina and North Carolina. Its western boundary is the fall line that marks the beginning of the hilly Piedmont and its eastern boundary is the Atlantic Ocean. As
part of a continuous Coastal Plain that extends from New York to Texas, it has arbitrary boundaries at the Alabama-Georgia border and at the North Carolina-Virginia border, extending into the southeast corner of Virginia only to capture the very Southeastern Great Dismal Swamp. The
southeastern boundary marks a broad transitional zone into Peninsular Florida. The Atlantic coast is lined with barrier islands that support sand dune and maritime forest habitats and are backed by marshland. Estuaries are less saline marsh nearest the coast, and river valleys become
increasingly wooded farther inland, supporting significant areas of bottomland hardwood forest. Pocosins and Carolina bays are non-alluvial forested wetlands unique to this physiographic area. Uplands were historically dominated by fire-maintained pine forests, with longleaf nearer the coast
and on sandy soils inland and a mixture of shortleaf, loblolly, and hardwoods elsewhere.
The Florida Uplands run about 275 miles west to east, along the northern edge of the Florida Panhandle and then extends south into the central area of the Florida peninsula. The width of the northern Florida Uplands varies from around 30 to 50 miles and is characterized by low rolling hills of red clay. Hard and softwood forests are plentiful. The section of the Florida Uplands that extends south into the peninsula, covers an area about 100 miles wide and 160 miles long. This area extends from the north, south and to the east, to separate the two sections of the East Gulf Coastal Plain and to separate the East Gulf Coastal Plain from the Atlantic Coastal Plain. The landscape in the southern Florida Uplands is characterized by low hills and many lakes. Though the Florida Uplands are only 200-300 feet above sea level, they are still higher than the regions of the Atlantic Coastal Plain and the East Gulf Coastal Plain. The highest point in Florida is found in the Florida Uplands that run along the northern edge of the panhandle. Just south of the Alabama border, west of Paxton, Britton Hill is 345 feet above sea level and is the lowest state high point in the nation.
Southern Blue Ridge
The Southern Blue Ridge is an area of rugged mountains, long broad ridges, steep slopes, and deep ravines. It straddles the border between Tennessee and North Carolina, extending south into northeast South Carolina and northwest Georgia and north into Virginia. High Peaks spruce-fir forest grades at lower elevations into northern hardwood forest or hemlock-white pine forest on steep, north-facing slopes and Appalachian oaks on drier sites. The Appalachian oak type is the most widespread forest type in the area. Mixed mesophytic hardwood forests, also called cove forests, over on more mesic sites at low to mid-elevations. Various southern yellow pine mixes occur on dry ridges, often associated with a fire regime. There are also riparian forest types along valleys at various elevations, primarily in the lowlands. Disturbance, including fire, grazing, and storm damage, plays a major role in determining the distribution and successional status of many of these forest types.
Southern Piedmont (Southern Appalachia)
The Southern Piedmont extends through central North Carolina, South Carolina, and Georgia and into eastern Alabama. The area is characterized by irregular plains and open hills with occasional tablelands. Elevations generally range from about 30 meters to 100 meters, but rise to about 400 meters at the interface with the Southern Blue Ridge. Numerous and diverse rivers comprise a major feature of the landscape. Although the Piedmont is geologically part of Southern Appalachia, the types of vegetation that characterize the region encompass a broad transition from upland forest types to the coastal plain. By most accounts, Piedmont forests were dominated by hardwoods at the time of early European settlement, and the extent far exceeded what exists today. However, the Piedmont was by no means entirely forested prior to European settlement. Eastern grasslands and savannas were extensive and present as late as the 1700's. Because Native American settlements were apparently common in the Piedmont, agricultural fields and other larger openings were historically part of the landscape.
Georgia Landscape and Landforms:
Atlantic Coastal Plain
The Atlantic Coastal Plain is part of the Atlantic Plain that stretches from Massachusetts to the Florida peninsula and around the Gulf of Mexico. The Atlantic Coastal Plain lies in southeast Georgia along the state's Atlantic Ocean shoreline. Occupying about 1/4 of Georgia, the Atlantic Coastal Plain is characterized by a flat landscape. The Okefenokee Swamp lies in the southern part of the Atlantic Plain and in part of the East Gulf Coastal Plain. The rivers in the Atlantic Coastal Plain drain into the Atlantic Ocean.
East Gulf Coastal Plain
The East Gulf Coastal Plain covers almost 1/4 of Georgia in the southwest. Similar to the flat landscape of the Atlantic Coastal Plain, the flat East Gulf Coastal Plain's soil is less sandy. Part of the Okefenokee Swamp lies in the East Gulf Coastal Plain. The great Suwannee River, like all rivers in this land region, flows south into the Gulf of Mexico.
Northwest of the Atlantic Coastal Plain and the East Gulf Coastal Plain, the Georgia Piedmont cuts across the state. The Piedmont is marked by a hilly landscape in the north where it abuts the Appalachian regions at around 1,500 feet above sea level. The land loses elevation to the southeast, where the hills become more gently rolling and the land is only about 400 feet above sea level. The clear difference in landscape where the southeastern edge of the Piedmont meets the Atlantic Coastal Plain and the Gulf Coastal Plain is called the Fall Line. It is along this line that the rivers flowing from the higher elevations of the Piedmont fall to the lower Coastal Plains forming waterfalls and rapids.
Forty-eight of the States are in the single region between Canada and Mexico; this group is referred to, with varying precision and formality, as the continental or contiguous United States, and as the Lower 48. Alaska, which is not included in the term contiguous United States, is at the northwestern end of North America, separated from the Lower 48 by Canada. The State of Hawaii is an archipelago in the Pacific Ocean. The capital city, Washington, District of Columbia, is a federal district located on land donated by the state of Maryland.
(Virginia had also donated land, but it was returned in 1847.) The United States also have overseas territories.