The Western District of the United Railways Trust is the railways grouped roughly north and west of Chicago – in practice, this means the CPR and subsidiaries Soo Line, DM&E and IC&E (the KCS is in the Southern District, while joint CPR/ORRC subsidiary GRNR is in the Northeastern District.)
The Western District’s operational HQ is CPR’s HQ in Calgary, as is the district’s backshop (the TdM shops, in the Northeastern District, is the primary backshop for the trust, but Calgary is able to do everything except remanufacturing on CPR & KCS motive power and specialty rolling stock.)
The Western District has – unlike the Northeastern District – strong feelings about having a uniform appearance across it’s network. The CPR’s branding department has a standard paint scheme that they try to apply across the entire district, and it took a lot of coaxing to keep the Soo Line as a distinct railroad after the merger (otoh, they were happy to abandon attempts to develop a uniform CPKC livery that mixed the KCS’s candy shop explosion paint scheme with their boring candy apple red one.).
The Western District is slowly electrifying their transcontinental mainline to Toronto & Chicago; the CPR had electrified their line over the Rocky Mountains between Calgary & Vancouver, BC before the merger, but when the CPKC board approved the merger with the Parsons Vale Trust work started, even before regulatory approval, on electrification of the CPR mainline between Sudbury & Thunder Bay.
The Western District connects to the Northeastern District in Sunbury, Toronto, and Chicago, and to the Southern District in Kansas City.