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The Potomac River in Washington, D.C., with Arlington Memorial Bridge in the foreground and Rosslyn, Arlington, Virginia in the background. The Potomac River runs 405 mi (652 km) from Fairfax Stone Historical Monument State Park in West Virginia on the Allegheny Plateau to Point Lookout, Maryland, and drains 14,679 sq mi (38,020 km 2).
The Shenandoah River / ˌʃɛnənˈdoʊə / is the principal tributary of the Potomac River, 55.6 miles (89.5 km) long with two forks approximately 100 miles (160 km) long each, [3] in the U.S. states of Virginia and West Virginia. The river and its tributaries drain the central and lower Shenandoah Valley and the Page Valley in the ...
The Mississippi drainage basin includes the Missouri and the Mississippi rivers, the two longest main-stem rivers in the United States, as well as 18 more of the rivers on this list. The Mississippi main stem is highlighted in dark blue. The longest rivers of the United States include 38 that have main stems of at least 500 miles (800 km) long.
Potomac River – 302 miles (486 km) Clinch River – 300 miles (480 km) Dan River – 214 miles (344 km) Rappahannock River – 195 miles (314 km) Levisa Fork – 164 miles (264 km) Tug Fork – 159 miles (256 km) Appomattox River – 157 miles (253 km) The James River is the longest river that is entirely within Virginia.
From the Fairfax Stone, the North Branch Potomac River flows 27 miles (43 km) to the man-made Jennings Randolph Lake, an impoundment designed for flood control and emergency water supply. Below the dam, the North Branch cuts a serpentine path through the eastern Allegheny Mountains. First, it flows northeast by the communities of Bloomington ...
The Chesapeake and Ohio Canal, abbreviated as the C&O Canal and occasionally called the Grand Old Ditch, [ 1 ] operated from 1831 until 1924 along the Potomac River between Washington, D.C. and Cumberland, Maryland.
The South Branch Potomac River has its headwaters in northwestern Highland County, Virginia, near Hightown along the eastern edge of the Allegheny Front. After a river distance of 139 miles (224 km), [ 4 ] the mouth lies east of Green Spring , Hampshire County, West Virginia , where it meets the North Branch Potomac River to form the Potomac .
The Wicomico River is a 13.0-mile-long (20.9 km) [1] tributary of the lower tidal portion of the Potomac River located in the U.S. state of Maryland south of Washington, DC. The river empties into the Potomac at Cobb Island and St. Margaret's Island. Its watershed area (excluding water) is 77 square miles (200 km 2), with 2% impervious surface ...