The easternmost of Shumagin Islands, Aleutian Range.
Called "Simeonoff" in 1872 by W. H. Dall, U.S. Coast and Geodetic Survey (USC&GS); other Russian forms of "Simon" include "Semenovsky," by Captain F. P. Lutke, Imperial Russian Navy (IRN), and "Semenovskie" by Captain M. D. Tebenkov, Imperial Russian Navy (IRN), and the Russian Hydrographic Dept. Aleut names applied to this island include "Tachkinach," by Lieutenant G. A. Sarichev, Imperial Russian Navy (IRN), and "Taghinak," "Tikhiniak," and "Takh-kiniakh" by Captain Lutke, Imperial Russian Navy (IRN).
Northeast Harbor, Northwest Harbor, Sandy Cove, Shoal Bay, Simeonof Harbor,
Capes:Channels:Koniuji Strait, Twelve Fathom Strait,
Islands:Atkins Island, Hall Island, Herendeen Island, Little Koniuji Island, Murie Islets,