Are you talking one of the Deer Area 1040 buck tags? If so, the area open to hunt is pretty limited. WDFW has maps that show the area pretty well. I have hunted the land directly to the east before. I saw a pretty even split of Mulies and Whitetails. Up high its a mix of deep heavily treed draws and flat open ridge tops that are in grass, crop, and/or pasture. Down low it gets steep as the land fall off into the breaks of the Grande Ronde. If you're looking for a Mule Deer buck you will find them all over the unit, but I would concentrate on the lower more open country. If you want a whitey then I concentrate around the fields and timbered draws. Nothing will help you more than a scouting trip. Its beautiful country. Good luck to your Dad.