Me and my brothers just got back from Idaho/Montana to try to catch each new type of subspecies of cutthroat. Was unable to complete our goal due to wildfires in the Clearwater River Basin.
Also the first picture is like the "bible" of cutthroats, goes to great depth about the fish and the whole biology/genetics of all the different subspecies of cutthroat.
Pic 1 - Cutthroat Book
Pic 2 - Coeur d'Alene Cutthroat
Pic 3 - Headwaters Clearwater River Cutthroat