Start at the Denny Creek trailhead (which is now at the big parking lot for Franklin Falls off the NF-5800), up the trail to Lake Melakway, continue on up to Upper Lake Melakwa to Melakwa Pass, then descend to Chair Peak Lake and then traverse (mostly off trail, though there is a faint boot path off and on) around to the ridge below Roosevelt Peak that traverses to Gem. From Gem follow the normal trail back down to Snow Lake and then up the ridge and down to Alpental.  About 12 miles TH-to-TH.

Greg Nance submitted the Route:

Began at Montreal Airport's (YUL) arrivals level then crossed the 520 highway onto Victoria Street before it merged into Notre Dame Street West. Lots of roadwork and construction but otherwise an easy 21.47km from outskirts into heart of Old Montreal at the Notre Dame Basilica. 

The route goes around the Lake Zurich (Zürichsee) & Obersee, 93km. The route is on roads and yellow trail.  It's a loop, so you can start/finish anywhere, and go either direction. 

Variations:

Road: Zurich & Obersee, 93km, gpx "Lake-Zurich-Circum"

Road: Zurich only: ~67km around Lake Zurich only, which is entirely on roads. gpx "road zurich only"