Thought I’d revive this thread.
epic ride -- Mountain Hero Trail, near Whitehorse, Yukon (28 km, climbs 1400 m)
Ride starts with a climb up old mining roads on Montana Mountain that level off in the alpine. Amazing views at the summit with historic mining artifacts from remains of Mountain Hero silver mine to check out. The descent is singletrack and it's a fast flowy ride down to the tree-line and Nares Lake.
Video clip of the ride:
Edit: Uh oh, it's no longer a secret. Whitehorse was voted world's best biking destination by Outside Magazine 03-12-2013.
Before you only saw wildlife on the ride, now you might see another rider...