Boundary Stones in Washington D.C.

East Corner Boundary Stone, 100 feet southeast of intersection of Eastern Avenue and Southern Avenue

 Photo by Stephen Powers, 2016

A bit of DC trivia I had not yet encountered: Apparently there are boundary stones still in existence all along the border of the city (and not just the one in Bloomingdale, which is, as is now obvious to me, of course named after them).

From BoundaryStones.org:

"The Residence Act of July 16, 1790, as amended March 3, 1791, authorized President George Washington to select a 100-square-mile site for the national capital on the Potomac River between Alexandria, Virginia, and Williamsport, Maryland. President Washington selected the southernmost location within these limits so that the capital would include all of present-day Old Town Alexandria, then one of the busiest ports in the country. "

Check out all the boundary stones in Google Maps, below.