Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
...it may be impossible to tell who's who -except for those with the Fine-spotted bloodline, which descends from the Snake River derivation, rather than the Westslope.
Honestly its hard to look at this fish and say that its a wild,...