boundary stones that mark the District of Columbia boundary.
The stone pictured at right stands in Westmoreland Circle, where Massachusetts Ave. crosses Western Ave. It's not one of the original stones, placed by surveyors in 1791 and 1792. It appears to be a bit more recent and has at least one twin, on Chevy Chase Circle.
Just a bit north of this stone is Northwest No. 6 Boundary Marker, which is original and shows the significant weathering of more than 200 years. The iron fence was installed about 100 years ago by the Daughters of the American Revolution.
I took advantage of my drive back to Delaware to add to my Delaware Boundary Monument collection. I took a detour and visited Tangent Line Monument 55, which is a crownstone but is almost completely buried in brambles and honeysuckle.