Description
Iumkrarak Slough is located in Yukon Delta, extends NS between Butomowik and Kwikluak Passes, 7 mi. E of Kwiguk, Yukon-Kuskokwim Delta. 1.5 miles long.
History
Eskimo name reported in 1899 by G. R. Putnam, U.S. Coast and Geodetic Survey (USC&GS), who spelled it "Iumkraarak."