Heads 10 miles southeast of Mignight Mountain and flows east, then south, to the Noxapaga River, 6.5 miles northwest of Lava Lake, Seward Peninsula Highlands. 11 miles long.
Andesite Creek, Aurora Creek, Ballarat Creek, Berry Creek, Black Creek, Buzzard Creek, Eldorado Creek, Frost Creek, Goose Creek, Grouse Creek, Grouse Creek, Humboldt Creek, Jennie Creek, Lane Creek, Largo Creek, Lincoln Creek, Little Daisy Creek, Lorna Creek, McLean Creek, Muskellunge Creek, Placer Creek, Skookum Creek, Sylvanite Creek, Tallowpot Creek, Turner Creek, Winona Creek, Yarrow Creek,
Valleys: