Heading in the Kemegrak Hills, flowing N then W to Akoviknak Lagoon about 5 mi NNW of Cape Thompson, Arctic Slope. 6 miles long.
Eskimo name reported in 1950 by U.S. Coast and Geodetic Survey (USC&GS) as "Ah-gah-you-kuk" meaning "old man." The stream may be named for Angayukak Hill. See Inukpak Rock.