Journal R.E.Johnson 1966 West Fork Yak River, 5000 Ft. Lincoln Co., Montana (cont.) July 5 were checked for signs of Ptarmigan, Pipits & Rose Finches & nothing to indicate their presence was found. There are trees above & below the cliffs & a few sizeable trees protrude from the cliffs. Considerable snow lies below & some ice remains on the lake. The ledges look typical of Ptarmigan habitat but may be too dry over much of their length. Vegetation on the ledges include Alpine Fir, Larch, Saxifrage, Moss, Buttercup, White Heathers (Lassiege & Phyllodoce). On returning to the truck I learned that Moore & Ames had seen 3 Wolverines not far from the parking area & had cornered one in a den (?) in a boulder slide. One of the 3 had been carrying a Hoary Marmot carcass. I remained at the 'den' while Moore & Ames drove to camp to obtain traps & find Ward. On their return we set up traps below the rockslide. The Wolverine had come out of the hole (2/3 exposed) and spotted me and returned to the hole. It did not appear again during the time we were present. A low growl could be heard from the hole when anyone approached. Wolverine tracks left in the snow appeared as below: 4 1/2" 3 3/4"