Caption:

Eastward from Dawson Creek, BC, on Northern Alberta Railways, there were two large timber trestles, first at mileage 134.7 over Dawson Creek east of Iracard and second at mileage 131.5 over Bissette Creek just east of Pouce Coupé. This is the long one over Dawson Creek and just 3.3 miles east of the town, built in 1951 to replace a challenged one a few hundred feet downstream (to the right), here carrying timetable train No. 52 (a Tuesday, Thursday, Saturday wayfreight returning to Grande Prairie, AB) on Tuesday 1977-09-20 with GP9 210 and thirteen cars plus caboose.

A similar shot, but taken three years later from an elevated viewpoint up a tree, is on the back cover of the recent NAR Diesels book by Les Kozma.