Lake Billy Chinook is home to a diverse range of species, including Bull Trout, Brown Trout, Rainbow Trout, Kokanee, and Smallmouth Bass. However, it’s the prized Bull Trout (Salvelinus confluentus) that draws anglers from far and wide. While this species is considered threatened across much of its northwestern range, it thrives here thanks to the cold, pristine waters of the Metolius River. These apex predators are aggressive and hard-fighting, making them an exciting challenge on the fly. We primarily target them using streamer patterns that imitate juvenile fish and Kokanee, though other methods can also be effective. Bulls typically range from 2 to 8 pounds, with double-digit giants not uncommon—a true trophy for any angler.