thans for replies guys. Im pretty new to this myself. Done alot of reading on elk and studing topo maps. Ive learned alot in 2 years and made alot of mistakes.Our first year we had 6 decent bulls within 40 yards and only got 1 shot. Made it count though. I think your right about them using them at night. They seem like they were being used often. About a 3 mile walk back in to them.I did find a wallow about 150 yards from the big park. It was in the open but surrounded by dark timber.