Connaught Tunnel is in a place.
For the Connaught tunnel in East London , England , see Eastern Counties and Thames Junction Railway The Connaught Tunnel is a railway tunnel under the Selkirk Mountains in southeastern British Columbia , Canada , near the city of Revelstoke . At the time it was built , the Connaught Tunnel was the longest railway tunnel in North America . Trains now predominantly travel east through the Connaught Tunnel and west through the Mount Macdonald Tunnel . The Mount Macdonald Tunnel , located in the vicinity of Rogers Pass in the Selkirk Mountains of British Columbia , Canada , is a railway tunnel constructed through Mount Macdonald by the Canadian Pacific Railway ( CPR ) .