Possible nest found near Dawson Creek witnessed in British Columbia, Canada

Open Map

What I came across is two large possible windfalls trees forming a type of den. Other trees are also among the two to form a four feet high shelter. What is unusual is the matted stringy hair caught in places inside at up to the four foot level. It is a reddish-orange color with even some grey mixed in about two to three inches long. Around this 'den' are many many large piles of scat with a fibourous consistancy. Also notted was fresh branches larger than a twoonie snapped like I can't describe how. It appears to have been inhabited earlier in the spring. Another item was a possible footprint only about size 12 to 14 though wider and what appeared to be a large toe which bent out at perhaps almost a 45 degree angle. The dog (which seemed nervous) unfortunatly sat on it and erased it. I try to discount the evidence as something else but its hard to. Plaese foreward some things to look for, I'd like to know what to look for