A coastal plain (also coastal plains, coastal lowland, coastal lowlands) is an area of flat, low-lying land adjacent to a sea coast. A fall line commonly marks the border between a coastal plain and an upland area.

Sep 22, 2023 · Topographic map showing the region of the northeastern United States occupied by the Coastal Plain; greens indicate lower elevation, browns higher elevation; black lines indicate physiographic boundaries of other provinces.

May 21, 2024 · A coastal plain is an area of low, mostly flat land adjacent to the ocean. The plain actually extends underwater and is part of the continental shelf. Coastal plains tend to feature unique plant and animal habitats as well as interesting geological features.

Oct 19, 2023 · A coastal plain is a flat, low-lying piece of land next to the ocean. Coastal plains are separated from the rest of the interior by nearby landforms, such as mountains. In western South America, a large coastal plain lies between the Andes Mountains and the Pacific Ocean.

Feb 25, 2022 · Snapshot: Overview of the topography and landforms of the Coastal Plain region of the southeastern United States, including the Atlantic Coastal Plain, the Florida Platform, and the Gulf Coastal Plain and Mississippi Embayment.

Jul 20, 2018 · Coastal plains form significant terrain connecting large bodies of water with inland regions. Some of the better known examples of plains include the Atlantic and Gulf coastal plains of North America and the inland coastal plain of Israel and the Mediterranean Sea.

Apr 24, 2017 · Built from the deposits of rivers draining the Appalachians and of coastal marine waters, the Atlantic Coastal Plain is defined by broad beds of sandstone, shale, limestone, clay and other sedimentary formations.

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 Coastal Plain features nearly continuous barrier islands interrupted by inlets, large embayments with drowned river valleys, and extensive wetlands and marshes. The Coastal Plain slopes gently seaward from the inland highlands in a series of terraces.

Feb 11, 2022 · Overview of the topography of the Coastal Plain region of the South-Central United States, including Louisiana and portions of Texas, Arkansas, Oklahoma, and Missouri.