flows W to North Fork Koyukuk River
Prospectors' name reported in 1909 by Maddren (1910, pl. 7), U.S. Geological Survey (USGS).
Bluecloud Creek, Bonanza Creek, Conglomerate Creek, Horse Creek, Ipnek Creek, LaSalle Creek, Mascot Creek, Pearl Creek, Richmond Creek, Rock Creek, Rock Creek, Ruby Creek,