For years now, I've kept a timeshare lodge out in the Colorado Rockies. Each September, I'd go hunting with some buddies. We hunt big game—deer, elk, antelope and sheep. Lately we've been thinking about hunting there in winter time. The lodge is accessible then, but it's been trouble getting a week because of the ski season. My question is: is the hassle worth it? How different is the game between winter and fall? I'm interested what folks here think is the best time of year for big game hunting.