Caption: With OCS clearance in hand from Mile 12 to Gretna Spur Track Switch with a protect against one foreman, "The Altona", CP 2313 West rolls due south (timetable west), clearing the "Perimeter Highway" enroute to Altona, Manitoba. On a clear prairie day where the mercury is hovering around -30C a trail of exhaust hangs in the air as the crew navigate the last few miles of non-Main Track territory. Shortly they would be notching up to track speed (30 MPH), however the Rule 43 green flag protecting a slow order right at the begin/end main track will hamper their efforts for getting up to track speed.