Caption: For CP to reach Prince Albert from its northern mainline across Saskatchewan at Lanigan, it took 25.5 miles on CP rails to reach CN’s northern mainline near Humboldt, 1.3 miles on CN from Hulan to Orlebar, 67.6 more on CP to reach CN’s Tisdale sub. at Northway, and then a final seventeen more CN miles to get to Prince Albert. On the Tisdale sub., CP had a daily-except-Sunday timetable schedule of No. 85 west and No. 86 east, and this is No. 85 with RS-23s 8020 + 8013 + 8026 + 8025 “rocketing” (so called for their distinct turbo exhaust) past the elevator at CN Davis at 1223 CDT on Friday 1981-09-25, with just over seven CN miles to go.