Good info on that "Canada Southern" site that NYC Dave referenced and to expand a bit on Noel's good
points, the through-trains ended for the most part after 1981, when route rationalization really started
in earnest during the Stanley Crane administration. The route was indeed a shorter and faster route
between Buffalo and Detroit, but with more important routes already in place via Cleveland and Toledo,
it was considered excess.
It's really too bad that Conrail wouldn't sell this line to a short-line or regional carrier because the tracks
would possibly still be in as a through-route, but it was all about "that competition thing"......