This map show 3 miles out of 26 in this speed zone, curve radius in meters, and the typical problem of this stretch: South of the Lamoine curves, the train could speed up to 49 mph, but the distance to the next sharp curve is little more than half a mile, a saving of a few seconds. Other stretches are longer, but they don't add up to anything more than a timetable buffer.
The underlying map is found on .
© Maps a la carte, Inc, used with permission.
The following link shows an
overview over the whole speed zone. Navigation, magnification and resizing needs
Javascript on that site.