A subspecies of cutthroat trout, the Bonneville cutthroat is native to this state & is its state fish
[DOC] [TLE] Utah State Fish: Bonneville Cutthroat Trout [PAR] Find Utah state fish, the Bonneville Cutthroat Trout (Oncorhynchus clarki utah), ... 
or so recognized subspecies of cutthroat trout native to the western United States.