CN rail line no longer in use

It's an access line, that is no longer in use, that cuts under the 401 and has been discontinued since the fall railway trafic in the 1970s. It's mid 1900s history that also displays the differences in bridge building from early 1900s to the creation of the 401. The line itself is completely inaccessible in summer do to the rivers that now run on either side of the line and floods the entire line. I realise it isn't a closed off building, but the historical value of investigating an area that is unnoticed/ inaccessible by the general public, that has historical purpose, and is from a time long passed seems to be a more common factor then a difference on this site. The fact that it still connects to the main line, at a main CN terminal and goes unnoticed, should also qualify.

alright, if you insist. you gotta write a good description for it then