28 miles long. Trend NE from junction of Nakailingak Creek and Kanektok River to Eek River, 75 mi. NE of Goodnews, Kilbuck-Kuskokwim Mts.
Name derived from Eek River; published in 1951 by U.S. Geological Survey (USGS).
Breast Mountain, Sawtooth Mountain, Tiokpit Mountain,
Mountain Ranges:Streams:Amakatatee Creek, Kanuktik Creek, Kapon Creek, Paiyun Creek, Rainy Creek, Tsayagtulek Creek,