The other riding is Calgary Shepard, which is a new riding so it doesn't have a sitting MP. As I mentioned, most of the area there involves an industrial area.
I think you can see on the green map before you that the Canadian Pacific Railway yards are on the right-hand side, so that leads into that big industrial area that's down in the southeast corner. I have no idea why they would want to put that in Calgary Centre, it seems to very much belong in Calgary Shepard.