Stingray,
Lots of the farms around Dufur/Friend have been sold to folks from the Metro area for hunting/recreation. They plant forage crops, build wallows and don't chase the elk out like the old timers did. Lots of the actual farmers in the area are complaining because the elk don't head up into the high country in the spring and they hammer their crops. One local kid that we spoke with said that he had seen big bachelor herds on several ranches during the summer and before the season started. We hunted second general season last year and found all of our elk down pretty low.
Years ago, I stream surveyed 5, 8, and 15 Mile Creeks and we always saw elk down low in the heavy cover near the ODFW Wildlife Management area. I'd check out Smock Prairie, the area around Rock Creek Res., and the lowest points you can access via the USFS roads on 8 Mile. If your boys are old enough there is a great push that you can do on the trail along 8 Mile starting from where the road crosses the creek up high and ends at the bottom of the road. I'll have to dig out some maps to get the road number.
If you are feeling very, very, very strong, the deep parts of Tygh Creek hold elk as well. The roads in the area are usually closed and it is one big, deep, dark hole to climb out of even without an elk. If we are hunting down there I usually don't have a shell chambered as I want to certain that I want to shoot an elk down there before I actually do. It would be a hard place to haul a grouse out of.
Good luck!
TF