1951 Map of Afognak D-4

About this map

Katmai National Monument defines the coastal boundary of this 1951 survey, capturing a rugged marine landscape where the Alaska Peninsula meets the sea. The map focuses on the waters of Cook Inlet and Shelikof Strait, providing a detailed study of the soundings and depth curves between the mainland and the Kodiak Island Borough line. Notable coastal features like Cape South Douglas, Sukoi Bay, and Katmai Bay offer a glimpse into the isolated coastline before later administrative shifts. The chart emphasizes the National Monument Boundary (Approximate), reflecting the preservation of these lands under federal management during the mid-century period.