That may be so, but there is extensive LIDAR imagery of the area that shows where the railway used to be. A more intensive approach would be to split up everything based on what is a cut and embankment, while excluding potential flat areas, but that would involve more work on the ground because there could be a slight embankment. That said, I am standing by the fact that much of the route is visible on the mainline route, including the road which was developed as a railroad bed, which is what has been commonly mapped on other routes around the nation.