. Across Canada : annotated guide via Canadian Pacific, the world's greatest transportation system : Western lines east bound . Mount Sir Donald 30 Across Canada. were track curva-ture and the neces-sity of maintaininglong stretches ofsnowsheds. Thesedifficulties were fin-ally overcome bythe construction ofthe ConnaughtTunnel, underMount Macdonald,named in honor the Dukeof Connaught, thenGovernor - Generalof Canada. Thistunnel is the long-est tunnel inAmerica, measur-ing exactly fivemiles from portalto portal, and itnot only eliminatedtrack curvature toan amount cor-recpondingto seven
. Across Canada : annotated guide via Canadian Pacific, the world's greatest transportation system : Western lines east bound . Mount Sir Donald 30 Across Canada. were track curva-ture and the neces-sity of maintaininglong stretches ofsnowsheds. Thesedifficulties were fin-ally overcome bythe construction ofthe ConnaughtTunnel, underMount Macdonald,named in honor the Dukeof Connaught, thenGovernor - Generalof Canada. Thistunnel is the long-est tunnel inAmerica, measur-ing exactly fivemiles from portalto portal, and itnot only eliminatedtrack curvature toan amount cor-recpondingto seven completecircles, but alsolowered the summit attained by the railway by 550 feet, re-duced the length of the line by 4% miles and dispensed with fourmiles of snow-sheds. The tunnel is double tracked, and measures29 feet from side to side and 21 feet 6V2 inches from the baserail to the crown. The method by which it was pierced involvedthe tunnelling of a pioneer bore paralleling the centre line ofthe main tunnel—a feature that was new and aroused the in-terest of tunnel engineers the world over. Rogers Pass wasnamed for Major A. B. Rogers, by whose advent
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Keywords: ., bookcentury1900, bookdecade1920, bookidacrosscanada, bookyear1922
