Old US highway gets old border monument. I guess technically this is PennDOH's monument, but it makes this a more complete page, since Sylmar Rd. quickly comes back to US 1 in PA and doesn't do anything interesting in that time.


The SB side of the monument, also stamped.

Nothing interesting on the east side of the triangle.


Driving south on the asphalted-over concrete of "Half Mile Turn", a one-way SB road that was once clearly two-way and the former US 1 mainline. Now it's just a really generous SB right turn ramp from a road that almost no one uses.

Modern US 1

Into Pennsylvania on old US 1 (Baltimore Pike)
Onto MD 273
Back to Roads