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The topography of Washington, D.C. is highly similar to the physical geography of much of Maryland. The city has three significant natural flowing bodies of water: the Potomac River and two tributaries, the Anacostia River and Rock Creek. The confluence of the Potomac and Anacostia forms the historic peninsula known as Arsenal Point.
The Geology of Washington, D.C., is broadly divisible into two regions. [1] The northwestern quadrant of the city lies mainly in the Appalachian Piedmont region, [1] marked by moderate to steep hills underlain by metamorphic rocks of Ordovician through Devonian age, similar to the adjacent Piedmont regions of Montgomery County, Maryland.
Outline of Washington, D.C. 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. The area given to District of Columbia, was originally 100 square miles (259 km 2) ceded by the states of Maryland and ...
dc .gov. 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. [13] The city is on the Potomac River, across from Virginia, and shares land borders with Maryland to its north and east. It was named for George Washington, the first president of ...
Northeast No. 2 Boundary Marker, along D.C./Maryland line, at 6980 Maple Street NW, Washington, D.C., with fence erected by the DAR. The boundary markers of the original District of Columbia are the 40 milestones that marked the four lines forming the boundaries between the states of Maryland and Virginia and the square of 100 square miles (259 ...
United States Capitol. / 38.88972°N 77.00889°W / 38.88972; -77.00889. The United States Capitol, often called the Capitol or the Capitol Building, is the seat of the United States Congress, the legislative branch of the federal government. It is located on Capitol Hill at the eastern end of the National Mall in Washington, D.C.
Jefferson Memorial's exterior Jefferson Memorial's interior. The Jefferson Memorial is a national memorial in Washington, D.C., built in honor of Thomas Jefferson, the principal author of the United States Declaration of Independence, a central intellectual force behind the American Revolution, a founder of the Democratic-Republican Party, and the nation's third president.
Quadrants of Washington, D.C. Color-enhanced USGS satellite image of Washington, D.C., taken April 26, 2002. The "crosshairs" in the image mark the quadrant divisions of Washington, with the United States Capitol at the center of the dividing lines. To the west of the Capitol extends the National Mall, visible as a slight green band in the image.