The Upper Deschutes headwaters area to Crane Prairie is a lovely place to be now, with good Euro Nymphing being the #1 way to target nice trout and whitefish up there. Some Dry Dropper action with small Chubby’s and Stimulators with a Rainbow Warrior or Sunken Ant dropper.
Caddis and PMD’s are certainly hatching in pockets and make sure you have Ants and Beetles and a Hopper in the collection to show the fish too.