There's a map of the CP Calgary Terminal in 1968 with all their industrial leads and names of each industry on each lead at the time. It's a resource I use often. (NOTE: You will need Adobe Acrobat to use it!)
To find it (once you've made an account), go into the Documents Library on their website and enter into the search bar: "Calgary Terminals (Calgary Terminals)". Choose the result dating from 1968 (likely at the bottom of the list of results).
You can also find a CN version of this from 1981 of all their industrial leads in Calgary.
To find it (once you've made an account), go into the Documents Library on their website and enter into the search bar: "Car Control". Choose the result dating from 1981 (likely the only file in the list of results).
It's your best resource for seeing the actual railway lines (or just roadbeds if the line has been torn out) and the scenery around them unless you want to do some extremely deep digging for old photographs or footage.