flows NW to Cache Creek, 51 mi. NE of Solomon, Seward Peninsula High.
Prospectors' name published on the 1908 "Map of Seward Peninsula" by Arthur Gibson. "Etchepuk River" was reported in 1909 by Smith and Eakin (1911, pl. 1), U.S. Geological Survey (USGS).
Alice Creek, Alma Creek, American Creek, Auburn Creek, Bennett Creek, Betsy Creek, Big Four Creek, Birch Creek, Blane Creek, Blue Rock Creek, Bonanza Creek, Brownie Creek, Camp Creek, Camp Creek, Castle Creek, Cliff Creek, Davison Creek, Dawson Creek, Discovery Creek, Elkhorn Creek, Eureka Creek, Fool Creek, Foster Creek, Gold Run Creek, Goldbottom Creek, Guy Rowe Creek, Helena Creek, Horton Creek, Howard Creek, Hugh Rowe Creek, Iron Creek, Ivanhoe Creek, Kingsley Creek, Lil Creek, Little Dixie Creek, Mason Creek, McBann Creek, Military Creek, Moonshine Creek, Nesbit Creek, No Mans Creek, Post Creek, Ptarmigan Creek, Puckmummie Creek, Red Creek, Richter Creek, Rock Creek, Russel Creek, Shea Creek, Slate Creek, Steward Creek, Sunnyside Creek, Sunrise Creek, Surprise Creek, Trout Creek, Ventura Creek, Virginia Creek, Warm Creek, Watson Creek, Windy Creek, Woods Willow Creek,
Valleys: