largest is 500 ft. long and 90 ft. high, 30 mi. SW of Chowiet I. in Semidi Is., Aleutian Range
Named in 1874 by W. H. Dall, U.S. Coast and Geodetic Survey (USC&GS). Captain Tebenkov (1852, map 22), Imperial Russian Navy (IRN), called them "Ut(es) Namdak" or "Namdak Crag," whereas Captain Archimandritov, Imperial Russian Navy (IRN), is reported to have called the "Namtschak" in 1849.