heads at junction of its North and South Forks, flows SW to Iditarod River, 7 mi. W of Flat and 53 mi. NE of Holy Cross, Kilbuck-Kuskokwim Mts.
Prospectors' name reported in 1910 by A. G. Maddren, U.S. Geological Survey (USGS).
Belle Creek, Bonanza Creek, Caribou Creek, Fairbanks Creek, Flat Creek, Franklin Creek, Glacier Creek, Happy Creek, Julie Creek, Little Caribou Creek, Little Eldorado Creek, Martin Creek, Otter Creek, Pedro Creek, Tango Creek, Timber Creek, Trail Creek, Willow Creek, Zimmerman Creek,
Cities: