The Kootenai River's flow surged to 20,000 cfs due to April rains, creating adaptable fishing conditions. Anglers should focus on nymphing deep water and expect hatches of Baetis and Caddis.

Spring fishing in Montana is prime between mid-March and late April, featuring slow trout behavior and a focus on nymphing. Anglers should utilize specific streamers and dry flies during warmer afternoons.