Because it is located more than 100 miles from civilization and accessible only by plane, the Sustut is the least fished of all the famous Skeena tributaries. The Sustut originates in Sustut and Johansen Lakes in the Omineca Mountains with the Pacific Ocean about 275 miles downstream from the junction of the Skeena and Sustut Rivers. View location. The river is crystal clear and full of game. In a normal week you will likely eagles, bears, moose, fox and even if you are lucky wolves. The scenery is simply unbelievable - every run offers unique wide open vistas and is waiting for you.