The sun had yet to rise on this November morning. With temperatures hovering in single digits and a 40-mile-per-hour wind in my face, I hoped the hunt would end fairly quickly, and figured it would. After all, how hard could it be hunting bison on a 10,000-acre ranch on horseback? Slinking closer to the edge of a cliff, I spotted the unmistakable stature of a bison. It was alone and in the bottom of a deep canyon. The big bull grazed 300 yards away in a spot that would take the better part of an hour to reach on foot.…