Base digitally derived from following U.S. Geological Survey 1:250,000-scale quadrangles, and contained 1:63,360-scale quadrangles in part, Afognak, 1952 (revised 1970); Bristol Bay, 1963 (revised 1977); Chignik, 1963 (revised 1976); Cold Bay, 1943 (revised 1975); False Pass, 1949 (revised 1970); Karluk, 1952 (revised 1981); Mt. Katmai, 1951 (revised 1975); Naknek, 1952 (revised 1981); Port Moller, 1953 (revised 1988); Simeonof Island, 1963; Stepovak Bay, 1963 (revised 1981); Sutwik Island, 1963; Ugashik, 1963 (revised 1975). Vicinity of Morzhovoi Bay to False Pass digitally derived from National Oceanic and Atmospheric Administration Chart 16535, Morzhovoi Bay and Isanotski Strait (Mercator Projection). Inset map digitally derived from Karluk (C-4 and C-5), Alaska, quadrangle, scale 1:63,360. USGS quadrangle sheets digitally transformed from: Universal Transverse Mercator projection, zones 3, 4, and 5 to: Albers Equal Area projection, 1st Standard Parallel; 55 degrees N 2nd Standard Parallel; 65 degrees N Central Meridian; 154 degrees W Projection origin; 50 degrees N