An underwater shot of a small cutthroat trout swimming in a creek

cutthroat trout oncorhynchus clarkii trout freshwater fly fishing fish ecosystem flyfishing fly fisherman gill aquatic habitat angling underwater endangered species angler wildlife stream cutthroat ecology creek nymph animal river swim fisherman montana fishing native nature release water catch wilderness wild serene spots westslope rod peaceful recreation background fly sport hook colorful home cold orange