If this drought continues, you should hunt in a blind over a good waterhole with a good decoy. Spend a few days scouting those units and you'll be able to see what waterholes they are using, set up a blind, natural or something like a double bull before season so they can get use to it and nail a monster. Stalking a Pronghorn with a bow in open country would be a huge challenge, especially during rut when the buck has all of his girlfriends with him.
Goatalopes can see 320 degrees out of 360, so the only thing they can't see is directly behind their head. Add to that 8X power eyes and you have a very difficult stalk a head of you.
Understanding wind currents and thermals in hilly, broken terrain can often be incredibly frustrating. I've found that collecting and storing milkweed seed pods during the late summer has made me a better hunter in the bluff country that I hunt. These little feather like seed dispersers will float on the lightest of air currents and will show you what the wind is not only doing right at you're location but more importantly down range. I like to use the off season to float them...