Jon, those deer are up high normally the hot August& September hot weather.head up to the aspens and above. if there are range cattle look for the man made watering holes. i bow hunted Colorado and Utah for many years and they were always up high until pushed down by weather, unless there was absolutely no water up there for them.7000 ft to timberline..deer love aspen, i have seen them get on there hind legs and stand to get to the young aspen leaves..if you find a good watering hole with a lot of deer coming into it,find out what direction there coming to it from and set up 300 - 500 yds from the water on the trail..the big boys won't hit the actual water source until after dark. took my biggest archery muley using this tatic. good luck Ray