formed by its East and West Forks, flows (E to Anaktuvuk River, 29 mi. SW of Umiat, Arctic Slope
Eskimo name meaning "raven" (tulugak) reported in 1901 by Peters and Schrader (1904, pl. 2), U.S. Geological Survey (USGS). This refers to the northern raven, Corvus corax principalis (I. N. Gabrielson and F. C. Lincoln, 1959, p. 616).