Best Upper Spiral Tunnel Tours from Yellowknife

The Spiral Tunnels near Field, BC, Canada are a marvel of modern railway engineering. Two circular tunnels were bored inside the mountain to allow the trains to climb steep elevations. When a train passes through the Spiral Tunnels, it becomes visible at three points at the same time. Running under Mount Ogden and Cathedral Mountain, this steep and scenic railway line crosses the Kicking Horse River on its way to the town of Field, British Columbia.