Pennsylvania Interstate 81
1970 specification highway marker.
Trailblazer for Interstate 81 heading south along Pennsylvania 315 near Dupont.
Photo by Brent Ivy, 9/26/2009.
1970 specification highway marker.
Trailblazer for Interstate 81 heading south along Pennsylvania 315 near Dupont.
Photo by Brent Ivy, 9/26/2009.