Tributaries are Olsen, Bishop, Pretty, Scarp, Coal and Drill Creeks. You will be able to see beluga whale in and near the mouth of the river feeding on salmon in May and June. Straight Creek is the most productive at its mouth and a nearby old raod bed provide marginal landing area. The 3 clearwater tributaries draining the flats between McArthur and Chakachatna Rivers are difficult to access, have no name, but produce modest salmon runs. The largest one, closest to the mountain, offers the best fishing.
Access is possible only by air travel.