Willis H. White Robert L. Detterman Frederic H. Wilson 1988 <p>Geologic mapping of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles was begun under the auspices of the Alaska Mineral Resource Assessment Program (AMRAP) in 1983 . Two important mineral deposits are located in the Port Moller quadrangle; the Pyramid prospect is the largest copper porphyry system in the Aleutian Arc, and the Apollo Mine is the only gold mine to reach production status in the Aleutian Arc. </p> application/pdf 10.3133/70180234 en U.S. Government Printing Office Geology and mineral resources of the Port Moller region, western Alaska Peninsula, Aleutian arc: A section in <i>USGS research on mineral resources - 1989: Program and abstracts</i> reports