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Louisiana's topography consists of relatively flat lowlands located on the coastal plain of the Gulf of Mexico and the Mississippi River's alluvial plain. The highest point in Louisiana is along its border with Arkansas but it still below 1,000 feet (305 m). The main waterway in Louisiana is the Mississippi and the state's coast is full of slow ...
- East Gulf Coastal Plain
- Mississippi Alluvial Plain
- West Gulf Coastal Plain
The East Gulf Coastal Plain consists of marshland east of the Mississippi River, and then rises slightly to rolling hills north of Lake Pontchartrain. The East Gulf Coastal Plain extends from the Florida Parishes of Louisiana over most of Mississippi, some of western Tennessee and Kentucky, the southwestern 2/3 of Alabama, and the western panhandle...
This is the most fertile area of the state. The Mississippi Alluvial Plain is located along the Mississippi River and is characterized by ridges and hollows. This area includes the huge Mississippi Delta area covering about one-quarter of the state. This area includes the floodplain of the Mississippi River that cuts into the Gulf Coastal Plain, ex...
The West Gulf Coastal Plain includes the area west of the Alluvial Plain. In the south, along the gulf, are barrier beaches. Behind the barrier beaches are marshes that extend about 20 miles north into the interior of Louisiana. To the north of the marshlands are the Louisiana Prairies, characterized by gently rolling landscape. The land gradually ...
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2 Landforms of the Louisiana Coastal Plain ©2019 Louisiana State University mail Louisiana Geological Survey Louisiana State University Baton Rouge, LA 70803 website lgs.lsu.edu office Room 3079 Energy, Coast & Environment Building phone 225/578-5320
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The Gulf Coastal Plain is a westward extension of the Atlantic Coastal Plain around the Gulf of Mexico. It is only the lower, seaward part of this region that deserves the name of plain, for there alone is the surface unbroken by hills or valleys. The inner part, initially a plain, has been maturely dissected into an elaborate complex of hills ...
64,008,345 [1] The Gulf Coast of the United States, also known as the Gulf South or the South Coast, is the coastline along the Southern United States where they meet the Gulf of Mexico. The coastal states that have a shoreline on the Gulf of Mexico are Texas, Louisiana, Mississippi, Alabama, and Florida, and these are known as the Gulf States.
Farthest west is the West Gulf Coastal Plain, which runs from Arkansas to the southernmost part of the state. Louisiana’s highest point, Driskill Mountain, is in the northern part of this region. Going south, the land slopes down to become prairie, then marshland, and eventually the sandy islands that border the coastline called barrier beaches.
The East Gulf Coastal Plain ecoregion encompasses portions of five states (Georgia, Florida, Alabama, Mississippi, and Louisiana) and over 42 million acres from the southwestern portion of Georgia across the Florida Panhandle and west to the southeastern portion of Louisiana.
