To get around the difficulty, the CPR engineers decided to adopt a Swiss idea - that of a spiral tunnel. They tunneled two spirals into the face of the mountain, allowing for a safe grade.
We were at the viewpoint labeled "You are Here" and watched an eastbound freight train enter the lower tunnel at Point 1 and emerge at Point 2.
|Freight Cars Entering the Lower Spiral|
|Freight Train Emerging from the Lower Spiral Tunnel|
We got ourselves pointed in the right direction, went back to the Icefields Parkway (Route 93, and turned north to Bow Lake. The Bow River has its origin with the Bow Glacier, maybe 25 miles north of Lake Louise, The melt from the glacier tumbles down Bow Glacier Falls and out across a braided river (delta) into Bow Lake, which in turn drains into the Bow River. (Just to the north of the lake is Bow Summit, which divides the Bow River watershed from those that flow toward the north.)
|Bow Lake with Bow Glacier in the Background|
|From Falls to River|