Fabulously beautiful area, dense grizzly population and zero people. Not too hard to get to crossing Flattop on bits of an obsolete trail from Fifty Mountain, then skirt along the open hills sides near Trapper Peak. One scary steep hardpan ravine must be crossed where a slip would send you plunging 1000 feet down to Lake Nahsukin. An axe would be helpful, otherwise just run real fast so your momentum will carry you to good footing on the far side. Says Doug
Having a tremendous time in the Lewis Range is painless. The top of Bighorn Peak is easily distinguished from Gyrfalcon Lake, and Gyrfalcon Lake is right by the Boulder Pass Trail.