I was archery hunting on Sat. and heard and saw sign of a lot of yotes up at 11,000 feet in the Wasatch Mnt. in northern Utah. I learned in collage that dominant pairs will stay up high through out the winter to protect their home ranges. Less dominant yotes will move down with the deer and to avoid the deep snow. My brother-in-law was a snow cat groomer for Solitude Ski Resort, and had several pairs of yotes as pets. When he was grooming at night, he would through them sandwitches and food, and they learned to follow the groomers around. This is when there is 8-10 feet of snow.