National Harbor in Fort Washington in Prince George's County, Maryland — The American Northeast (Mid-Atlantic)
The Nation's River
[Captions:]
The Fairfax Stone, marking the source or "first fountain of the Potwmack," defines the boundaries of several counties and the final state boundary between West Virginia and Maryland.
In 1649, the King of England granted several loyal followers land "...bounded by and within the heads of the Rivers Rappahannock and Patawmecke..." To secure this 5 million acre territory, Thomas Lord Fairfax who had become sole proprietor of the grant through deed transfers, intrigue and marriage commissioned several surveys. The resulting map traces the Potomac River from the Chesapeake Bay back to its source 385 miles away in the mountains of West Virginia.
In 1748, a 16 year-old George Washington was invited on a month-long trip to survey a portion of the vast property owned by his neighbors, the influential Fairfax family. This trip and later expeditions took the future president west along the Potomac River into the Ohio Valley. Washington's dream was to build a canal to overcome Great Falls, depicted above, and several other obstructions to the Potomac, opening the vast interior of the country up to trade.
Topics. This historical marker is listed in these topic lists: Settlements & Settlers • Waterways & Vessels. A significant historical year for this entry is 1649.
Location. 38° 47.565′ N, 77° 1.467′ W. Marker is in Fort Washington, Maryland, in Prince George's County. It is in the National Harbor. It can be reached from Capital Beltway (Interstate 95) west of National Harbor Boulevard, on the right when traveling east. Touch for map. Marker is in this post office area: Oxon Hill MD 20745, United
Regionally, this marker is in the Washington Metropolitan Area. It is also in the American South, specifically in the Upper South, and in the Mid-Atlantic. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once one of the original Thirteen Colonies and also the Antebellum South.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Potomac Fisheries (here, next to this marker); Working to Improve the River (here, next to this marker); Bladensburg (a few steps from this marker); Neighbor to the Nation's Capital (a few steps from this marker); The Founding of Maryland (a few steps from this marker); The Tobacco Economy (a few steps from this marker); The Growth of the Black Middle Class (a few steps from this marker); College Park (a few steps from this marker). Touch for a list and map of all markers in Fort Washington.
Credits. This page was last revised on March 3, 2023. It was originally submitted on December 23, 2018, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 659 times since then and 25 times this year. Photos: 1, 2. submitted on December 23, 2018, by Devry Becker Jones of Washington, District of Columbia. • Andrew Ruppenstein was the editor who published this page.

