Birch Creek is a GREAT spot to hunt, but it has steep areas, and you will definitey have to hike a lot. I have seen some dandy's in there while hunting elk. If you can get near the bottom of the Canyon early, the other hunters in the area will push the backs out of the canyon and towards the bottom of the canyon that funnells into the valley below. Also, there is a small creek at the bottom of the canyon, I have seen many bucks watering in the creek early in the morning and in the late afternoon.
Hope this helps a little.
SCOTT