The most dramatic natural feature near Whitehorse is Miles Canyon, where the Yukon River has cut its way down through a flow of basaltic lava. The lava flowed from a vent approximately 8 km (5 mi) to the south, between Golden Horn and what is now the Mount Sima ski hill, about 8.5 million years ago. The 85-foot-long Robert Lowe Suspension Bridge was built across the narrowest and most dramatic part of the canyon in 1922 to help people enjoy more of the canyon.

This photograph is © 2016 by Murray Lundberg, and is not to be copied without express permission.