Brown and rainbow trout are abundant in the upper Beaver River in Beaver Canyon. Brown trout get aggressive in the fall as they prepare to spawn and can be effectively caught with various flies (streamers and egg patterns), lures (spinners and Rapalas) and jigs (marabou and tubes). Individual fish spawn at various times, so there will always be a few fish in pre-spawn aggression mode or post-spawn feeding mode. Most of the tributaries — including the Beaver forks, Merchant Creek and Three Creeks — also have abundant populations of wild trout.