I live in NW IN and go out to Jackson Hole every year. Either place, here are my go-to flies:
DRY: Purple Haze, Griffith's gnat, Royal Wulff, Elk Hair Caddis, Yellow Humpy & black ant.
Nymph: Bead head Prince, Pheasant tail, Gold ribbed Hare's Ear, Zug Bug, red copper john or Brassie.
Streamers: Olive, white and black wooly boogers, Purple zonker, Black Bunny leach, olive sculpin