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New River – western North Carolina; ... North Carolina Streamflow Data from the USGS This page was last edited on 10 February 2025, at 12:46 (UTC). Text is ...
USGS map colored by paleogeological areas and demarcating the sections of the U.S. physiographic regions: Laurentian Upland (area 1), Atlantic Plain (2-3), Appalachian Highlands (4-10), Interior Plains (11-13), Interior Highlands (14-15), Rocky Mountain System (16-19), Intermontane Plateaus (20-22), & Pacific Mountain System (23-25) The legend ...
The Coastal Plain is the largest geographic area of the state, and covers roughly 45% of North Carolina. The Coastal Plain begins along the fall line , a line that marks the boundary between metamorphic/igneous rocks of the Piedmont province (to the west) and sedimentary rocks of the Coastal Plain province (to the east).
To the north, the Atlantic Coastal Plain also broaches into the mesic hardwood forests of the Middle Atlantic coastal forests, followed by the northern Atlantic coastal pine barrens. [17] [18] [19] The southernmost Atlantic Plain contains the only Neotropical ecoregion of the continental USA, being the Everglades and Florida mangroves. [20]
For coastal or lake flooding, a 100-year flood is generally expressed as a flood elevation or depth, and may include wave effects. For river systems, a 100-year flood is generally expressed as a flowrate. Based on the expected 100-year flood flow rate, the flood water level can be mapped as an area of inundation.
In fiscal year 2008, the USGS provided 35% of the funding for everyday operation and maintenance of gauges. [8] Additionally, USGS uses hydrographs to study streamflow in rivers. A hydrograph is a chart showing, most often, river stage (height of the water above an arbitrary altitude) and streamflow (amount of water, usually in cubic feet per ...
Typical of rivers in the Coastal Plain of North Carolina, the Neuse enters a basin of chocolate intermittent bottomland swamp on its journey towards its outlet. One interesting exception is the " Cliffs of the Neuse " area near Goldsboro , where the river cuts a narrow 30 m (90 ft) gorge through limestone and sandstone bluffs.
Cape Fear is a coastal plain and Tidewater region of North Carolina centered about the city of Wilmington. [2] The region takes its name from the adjacent Cape Fear headland, as does the Cape Fear River which flows through the region and empties into the Atlantic Ocean near the cape.