Idaho Stillwaters

Fish deep and early or late in the day on all irrigation reservoirs. Some of better still water fishing is on the west end of Island Park Reservoir around Grizzly Springs and Trude Bay. Try bloodworm patterns under an indicator. You will have to find the taking depth.
Fly Patterns to use:
Harrop’s Mayfly Nymph Callibaetis
Belly Flop Balanced Damsel
Chan’s Balanced Ruby-Eyed Leech Black/Red