I hunt in the mountains, at least part of the time, and wind directon isn't a consistent factor at all. You can check the wind, but when you go in , at certain junctures, it swirls like water at a bend in a river. Certain ridges and mountainsides deflect it, and it can be entirely different from the prevailing wind in the open. You have to be prepared for the specific spot you are hunting, and take every precaution that is feasible. Even then, it is still tough. I hunt with a climber, and sometimes it takes as long to pick out the right tree as it does to get to where I want to hunt. I have literally stood in one spot trying to find the right tree for as long as 45 minutes![&:]And, then when you think you have it right--it changes after you climb! That is one reason hunt as high as I can without getting to the point of being too high for a good angled shot.