89C146 is to be found on the right, west, side of the north tunnel entrance. It is about a big foot from the left edge and a few inches above ground level.
One may park on the east shoulder at the entrance as there's a reasonably wide spot there.
Along the stretch of Trans-Canada Highway between Boston Bar and Yale are
7 tunnels, built between 1957 and 1964, as part of the Trans-Canada Highway. From South to North the tunnels are: Yale (1963), Saddle Rock (1958), Sailor Bar (1959), Alexandra (1964), Hell's Gate(1960), Ferrabee (1964) and China Bar (1961).
Name Province NTS map sheet Unique Number
89C146 British Columbia 092H11 89C146
Yale
Highway no. 1 saddle rock tunnel, 5.1 km north of bridge over yale creek, 35.9 km south of rcmp station in boston bar, 2.5 km south of bridge over sawmill creek, 1.8 km north of caribou wagon road point of interest pull out, tablet in north face of north concrete portal at northwest corner of tunnel, 6.2 m west of centre line of highway, 70 cm below engraved word `tunnel', 57 cm west of inside east face of tunnel, 35 cm above highway level.
From NRCAN