The CP Tyvan subdivision runs from Richardson, SK to Crecy (Regina, SK). The Stewart Southern Railway purchased the remainder of the subdivision in 2010.
| Mile | Station | Siding |
|---|---|---|
| 80.1 | RICHARDSON Interchange with Stuart Southern Railway | – |
| 83.5 | WHITMORE Junction with CN Lewvan Subdivision | – |
| 84.7 | McCALLUM Junction with CN Glenavon Subdivision | – |
| 87.3 | CRECY Junction with CP Indian Head Subdivision | – |
The subdivision operates under the Occupancy Control System (OCS) between Crecy and end of track, and Centralized Traffic Control system (CTC) at Crecy. The track is operated jointly with CN between Crecy and Whitmore. The maximum speed over the subdivision is 30 MPH.