Most people connect with Flying Dog via the Glenwild loop or a combo of 24/7 and either Stealth, from Kimball Jct, or Fink Again, from Jeremy Ranch.
Flying Dog adds a longer ride to the many options in the Glenwild trail network. The author's preferred route is to pick up Flying Dog from Glenwild Loop, climbing the 16 exposed switchbacks, then 'flying' down the other side through Aspens and Pines. Of course, be mindful of climbers who haven't figured out that counter clockwise is the way to go on this dog.
There is a bench at the top, around mile 2.4.
Moose and other wildlife have been 'encountered' near the pond at mile 4.1 of this route, so fire up your radar and sweep the trail left and right as you descend.