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  2. Boundary markers of the original District of Columbia

    en.wikipedia.org/wiki/Boundary_Markers_of_the...

    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 ...

  3. History of the mapping of California - Wikipedia

    en.wikipedia.org/wiki/History_of_the_mapping_of...

    In 1841, Cadwalader Ringgold, an officer in the United States Navy, spent twenty days surveying the San Francisco Bay watershed as a member of the United States Exploring Expedition In 1849, Cadwalader Ringgold began a more comprehensive survey the San Francisco Bay region, [11] the Sacramento River, and parts of the American and created several maps which included depth sounding information ...

  4. List of U.S. states and territories by coastline - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._states_and...

    * New York has both ocean and Great Lakes coastline. This is a list of U.S. states and territories ranked by their coastline length. 30 states have a coastline: 23 with a coastline on the Arctic Ocean, Atlantic Ocean (including the Gulf of Mexico and Gulf of Maine), and/or Pacific Ocean, and 8 with a Great Lakes shoreline.

  5. District of Columbia retrocession - Wikipedia

    en.wikipedia.org/wiki/District_of_Columbia...

    The Washington City Board of Aldermen and Common council also expressed opposition to retrocession of Alexandria. [39] The Senate passed the retrocession bill on July 2 by a vote of 32–14, with a mix of Southerners and Northerners on each side. [40] It was signed into law by James K. Polk on July 9, 1846. [41]

  6. Cartography of the United States - Wikipedia

    en.wikipedia.org/wiki/Cartography_of_the_United...

    Maps of the New World had been produced since the 16th century. The history of cartography of the United States begins in the 18th century, after the declared independence of the original Thirteen Colonies on July 4, 1776, during the American Revolutionary War (1776–1783). Later, Samuel Augustus Mitchell published a map of the United States ...

  7. U.S. Route 50 in Maryland - Wikipedia

    en.wikipedia.org/wiki/U.S._Route_50_in_Maryland

    MD 343 west (Washington Street) Eastern terminus of MD 343; no direct access from eastbound MD 343 to westbound US 50: 80.79: 130.02: MD 16 west (Church Creek Road) – Church Creek, Taylors Island, Hoopers Island: Western end of MD 16 concurrency: 81.20: 130.68: MD 750 east (Old Route 50) Western terminus of MD 750: 82.00: 131.97: MD 750 west ...

  8. How Alexander the Great redrew the map of the world - AOL

    www.aol.com/news/alexander-great-redrew-map...

    He conquered land across three continents, ruled over states from Egypt to modern-day India, and never lost a battle – before dying, aged just 32. Alexander the Great’s legacy has given him ...

  9. Geography of Washington, D.C. - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Washington,_D.C.

    Map showing the location of Washington, D.C. in relation to its bordering states of Maryland and Virginia Washington, D.C. is located in the Mid-Atlantic region of the United States at 38°53′42″N 77°02′11″W  /  38.89500°N 77.03639°W  / 38.89500; -77.03639 , the coordinates of the Zero Milestone , on The Ellipse