Categories: Chesapeake Bay Watershed | Airax County, Virginia | Potomac River Watershed | Rivers o Virginia | Alexandria, Virginia The Allegheny Front is an escarpment delineating the eastern edge of the Allegheny Mountains. ... The Allegheny Mountains are a part of the Appalachian mountain range of the eastern United States. ... The official U.S. Census Bureau-designated Washington-Baltimore-Northern Virginia, DC-MD-VA-WV Combined Statistical Area. ... Blue Ridge Mountains, Shinning Rock Wilderness Area Blue Ridge Mountains (NPS) Most of the rocks that form the Blue Ridge Mountains, United States, are ancient granitic and metamorphosed volcanic formations, some exceeding one billion years in age. ... Cumberland Valley Township is a township located in Bedford County, Pennsylvania. ... Eastern panhandle The Eastern Panhandle of West Virginia is a narrow stretch of territory in the northeast of the state, bordering Maryland and Virginia. ... The Northern Neck is the northernmost of three peninsulas on the western shore of Chesapeake Bay in Virginia, USA. This peninsula is bounded by the Potomac River on the north and the Rappahannock River on the south. ... Northern Virginia is a regional area consisting of Arlington, Fairfax, Fauquier, Loudoun, Prince William, and Stafford counties and the independent cities of Alexandria, Falls Church, Fairfax, Manassas, and Manassas Park. ... Potomac Highlands The Potomac Highlands of West Virginia is the root of the Eastern Panhandle, bordering Maryland and Virginia. ... The Ridge-and-valley Appalachians are a belt within the Appalachian Mountains extending from northern New Jersey westward into Pennsylvania and southward into Maryland, West Virginia, and Virginia. ... Canoeing on the Shenandoah River near Winchester, VA. The Shenandoah Valley region of western Virginia, from Winchester to Staunton, is bounded by the Blue Ridge mountains to the East and the Allegheny mountains to the West. ... Southern Maryland is composed of the states southernmost counties on the Western Shore. ... Western Maryland is the portion of U.S. state of Maryland that consists of Frederick, Washington, Allegany, and Garrett counties. ... The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States (USA). ... Stony River is a tributary of the North Branch Potomac River in Grant County in West Virginias Eastern Panhandle. ... The Savage River is located in Garrett County, Maryland and is the first large tributary of the North Branch of the Potomac River. ... Georges Creek has its headwaters near Frostburg, Maryland and empties into the Potomac River at Westernport, Maryland all in western Allegany County, Maryland. ... New Creek lies in Mineral County, West Virginia and Grant County, West Virginia, it is the 3rd major tributary to the Potomac Rivers north branch. ... Wills Creek is a tributary of the North Branch Potomac River. ... Patterson Creek is a tributary of the North Branch Potomac River in West Virginias Eastern Panhandle. ... The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States (USA). ... Lunice Creek is a tributary of the South Branch Potomac River, belonging to the Potomac River and Chesapeake Bay watersheds. ... The Little Cacapon viewed north from Okonoko-Little Cacapon Road (CR 2/7) Bridge. ... The Cacapon River, located in the Appalachian Mountains of West Virginias Eastern Panhandle region, is a beautiful and scenic river known for its outstanding fishing, boating, wildlife, and scenery. ... The Lost River is located in the Appalachian Mountains of Hardy County in West Virginias Eastern Panhandle region. ... North River is a tributary of the Cacapon River, belonging to the Potomac River and Chesapeake Bay watersheds. ... Tearcoat Creek is a free-flowing tributary stream of the North River, itself a tributary of the Cacapon River, making it a part of the Potomac River and Chesapeake Bay watersheds. ... Sleepy Creek is a tributary of the Potomac River, belonging to the Chesapeake Bays watershed. ... Cherry Run is a small meandering stream that forms the northern section of the boundary between Morgan and Berkeley Counties in West Virginias Eastern Panhandle. ... Back Creek is a tributary of the Potomac River that flows north from Frederick County, Virginia to Berkeley County in West Virginias Eastern Panhandle. ... Opequon Creek is a tributary of the Potomac River. ... Burnside Bridge traversing Antietam Creek near Sharpsburg, Maryland, site of heavy combat during the Battle of Antietam (Sharpsburg) on September 17, 1862 Antietam Creek is a tributary of the Potomac River located in south central Pennsylvania and western Maryland in the United States. ... This article is about the river in Virginia in the United States. ... The North Fork Shenandoah River is one of two forks, along with the South Fork, that unite to form the Shenandoah River in northwestern Virginia in the United States. ... The South Fork Shenandoah River is one of two forks that unite to form the Shenandoah River in northwestern Virginia in the United States. ... The Monocacy River is a free-flowing tributary of the Potomac River, which empties into the Atlantic Ocean via the Chesapeake Bay. ... Catoctin Creek is a tributary of the Potomac River located in Frederick County, Maryland, USA. Catoctin Creek enters the Potomac River east of Brunswick. ... Catoctin Creek is a tributary of the Potomac River located in Loudoun County, Virginia, USA. The Catoctin Creeks watershed occupies 59,000 acres. ... Seneca Creek, looking upstream from Berryville Road The Aqueduct at Rileys Lock Seneca Creek is located in Montgomery County, Maryland roughly sixteen miles to the northwest of Washington, D.C. The creek begins in multiple areas of Gaithersburg, Germantown, and Boyds, the two main tributaries converging roughly at Darnestown. ... Pimmit Run is a stream in Northern Virginia that runs from Fairfax County to the Potomac River at Chain Bridge in the Arlingwood neighborhood of Arlington County. ... Rock Creek is also the name of several cities in the United States: Rock Creek, Alabama, Rock Creek, Minnesota, Rock Creek, Ohio, and Rock Creek, Wisconsin. ... The Anacostia River is a river that flows about 8. ... Sligo Creek is a free-flowing tributary of the Northwest Branch of the Anacostia River, which feeds into the Potomac River and eventually emptys into the Atlantic Ocean via Chesapeake Bay. ... Piscataway Creek is a tidal tributary of the Potomac River in Prince Georges County, Maryland. ... The Occoquan River flows into the Potomac River at Belmont Bay, and is located in Northern Virginia, along the mid-Atlantic coast of the United States (USA). ... Bull Run is a free-flowing tributary stream of the Potomac River that originates from a spring in the Bull Run Mountains in Loundon County, Virginia and flows south to the Occoquan River. ... Neabsco Creek is a tributary of the lower tidal segment of the Potomac River located in eastern Prince William County, Virginia. ... Mattawoman Creek is a tidal tributary of the Potomac River located in Prince Georges and Charles Counties in Maryland. ... Quantico Creek is a tidal tributary of the Potomac River located in eastern Prince William County, Virginia. ... Aquia Creek is a tributary of the tidal segment of the Potomac River located in Northern Virginia. ... Port Tobacco Historic District One of the oldest communities on the East Coast, Port Tobacco first existed as the Indian settlement of Potopaco and was colonized by the English as early as 1634. ... The Wicomico River is a tributary of the lower tidal portion of the Potomac River located in the state of Maryland south of Washington, DC. The river empties into the Potomac at Cobb and St. ... The St. ... The Yeocomico River is a small tributary of the southern tidal portion of the Potomac River in Virginias Northern Neck. ... Hull Creek is a tributary of the tidal portion of the Potomac River in Northumberland County in Virginias Northern Neck. ... Brushy Fork Lake is an 18-acre impoundment on the South Branch South Fork Potomac River located three miles south of Sugar Grove in southeastern Pendleton County, West Virginia, USA. Brushy Fork Lake lies in the Dry River District of the George Washington National Forest. ... The Dalecarlia Reservoir is the primary storage basin for drinking water in Washington, DC, fed by an underground aqueduct in turn fed by a low dam which diverts a portion of the Potomac River near Great Falls. ... The Georgetown Reservoir is a part of the water supply and treament infrastructure for the District of Columbia. ... Jennings Randolph Lake is a constructed lake located on the North Branch Potomac River in Garrett County, Maryland and Mineral County, West Virginia approximately eight miles upstream of Bloomington, Maryland, and approximately five miles north of Elk Garden, West Virginia. ... Early settlers in the District of Columbia were dependent upon local springs for water until 1850, when the Potomac River was identified by Congress as the Districts principal source of water. ... Mount Storm Lake (New Stony River Reservoir) is a 1,200 acre (4. ... Sleepy Creek Lake is a 205 acre impoundment of the Meadow Branch of Sleepy Creek in Berkeley County in West Virginias Eastern Panhandle. ... Stony River Reservoir was constructed on the Stony River in 1888 by Westvaco to supply the source of water for the companys main pulp mill. ... ... Official language(s) None (English, de-facto) Capital Annapolis Largest city Baltimore Area  Ranked 42nd  - Total 12,417 sq. ... Official language(s) None Capital Harrisburg Largest city Philadelphia Area  Ranked 33rd  - Total 46,055 sq mi (119,283 km²)  - Width 160 miles (255 km)  - Length 280 miles (455 km)  - % water 2. ... Official language(s) English Capital Richmond Largest city Virginia Beach Area  Ranked 35th  - Total 42,793 sq. ... Official language(s) English Capital Charleston Largest city Charleston Area  Ranked 41st  - Total 24,244 sq. ...