The Crooked River is fishing really well, with good to great nymphing each day and opportunities for dry flies usually in the evening, although look for the “shadow” hatches in the afternoon to start up. What does this mean? Well, over the years we discovered that the shadows from the tall ponderosa pines will be micro habitat for a hatch. In the summer usually that is a PMD, but try a Purple Haze and Parachute Adams here too. 
A dry dropper rig is a smart move for the Crooked, and a small Purple Chubby or Larimers Yellow Sally is a good dry for the rig. Run a 5x fluorocarbon tippet 3 or 4 feet behind to a PMD colored 2 Bit Hooker or Tan Caddis Pupa and work the edge seams and riffles. 
Euro Nymphing is going to pay off the best throughout the day.