Never hunted Oregon but I've hunted blacktail in Western Washington. It's a lot like whitetail in East Texas. Real thick, not many long shots. Look for funnels, feeding areas, ect. I'm not sure what the regulations in Oregon are, but there was no baiting in Washington.
Good luck and get you a biggun!
“He grouped his last five shots right in the center of the bull’s-eye. Then I showed him my technique of scattering shots randomly around the target because, as I explained, you never know which way the deer might jump just as you pull the trigger.”