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Washington, D.C. is located on the fall line, the border of two considerably different geological terrains or provinces; the hard rock of the Piedmont Plateau to the north and west and the soft sediments of the Atlantic Coastal Plain to the east. The Piedmont Plateau is located north and west of the city.
Map of the boundary stones. The District of Columbia (initially, the Territory of Columbia) was originally specified to be a square 100 square miles (260 km 2) in area, with the axes between the corners of the square running north-south and east-west, The square had its southern corner at the southern tip of Jones Point in Alexandria, Virginia, at the confluence of the Potomac River and ...
Washington, D.C., legally named the District of Columbia, in the United States of America, was founded on July 16, 1790, after the inauguration of City of Washington, the new capital of the country.
Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States.The city is on the Potomac River, across from Virginia, and shares land borders with Maryland to its north and east.
The lowest average daily flow ever recorded at the same location was 601.0 cubic feet (17.02 m 3) /s in September 1966 [2] The highest crest of the Potomac ever registered at Little Falls was 28.10 ft, on March 19, 1936; [43] [28] however, the most damaging flood to affect Washington, DC and its metropolitan area was that of October 1942. [44]
Territorial evolution of the District of Columbia. District of Columbia retrocession is the act of returning some or all of the land that had been ceded to the federal government of the United States for the purpose of creating its federal district for the new national capital, which was moved from Philadelphia to what was then called the City of Washington in 1800.
Washington, D.C., is administratively divided into four geographical quadrants of unequal size, each delineated by their ordinal directions from the medallion located in the Crypt under the Rotunda of the Capitol. Street and number addressing, centered on the Capitol, radiates out into each of the quadrants, producing a number of intersections ...
Neighborhoods in Washington, D.C., the capital of the United States, are distinguished by their history, culture, architecture, demographics, and geography. The names of 131 neighborhoods are unofficially defined by the D.C. Office of Planning. [ 1 ]