flows SE to Kuyukutuk River 12.5 mi. NW of Russian Mission, Nulato Hills. 4.5 miles long.
Prospectors' name reported by Harrington (1918, map), U.S. Geological Survey (USGS); probably named for Andrew Edgar who staked claims in the area in 1913.
Bend Mountain, Ungalak Mountain,
Rivers:East Fork Kuyukutuk River, South Fork Kuyukutuk River, West Fork Kuyukutuk River,
Streams:Bobs Creek, Brehnard Creek, Dads Creek, Disappointment Creek, Edgar Creek, Elephant Creek, Faith Creek, Happy Creek, Home Creek, Joe Wise Creek, Johns Creek, King Creek, McNeill Creek, Saint Amand Creek, Stella Creek, Whiskey Creek,