United States, Arkansas, Washington, Gregg Street, near RR X, Fayetteville.
36.065046 -94.166657 +-765m. WGS84
Used Google Streets and Satellite maps, drew polygon along railroad tracks paralleling N and S Gregg Streets *including the segment between these two streets that seem to be disconnected but the railroad still runs north and south, placed marker centrally in polygon, and resized to polygon.