Description
Costello Creek is located flows SE to Bull River, 50 mi. SW of Healy, Alaska Range. 12 miles long.
History
Prospectors' name obtained in 1913 by J. W. Bagley, U.S. Geological Survey (USGS); published by Capps (in Martin, 1919, pl. 5), U.S. Geological Survey (USGS).