How does CP come up with their mileage numbering system? I'm assuming that the numbers run along the entire Sunbury Sub from the Canadian border to Sunbury. This pic I took about 1/2 mile south of Nanticoke PA shows the milepoint as 696.65:
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That would make it 142 miles from Oneonta (southwest). The milepost at the Canadian border would be something
like 300 if you subtract 167 from the 467 at Mechanicville.
My question is where do the first 300 miles come from, Toronto or somewhere else in Canada?