The McKenzie River is fishing super well in the Blue River area for our guides. A Dry Dropper set up with a Chubby and a Copper John, Possie Bugger or Baby Got Bead is good for that, or as a side drift-tightline method. 
We have also had some very good fishing on Elk Hair Caddis, Parachute Adams, Stimulators and Corn Fed Caddis this week. A few Drakes have been popping on many afternoons so throw some Dry Ice Drakes and Wulff style Drakes in for that riffle water on the Mack!