1961 Map of Sumdum C-3

About this map

Dawes Glacier and South Sawyer Glacier dominate this 1961 aerial survey of the boundary between Alaska and British Columbia. The map captures a landscape defined by massive ice flows and glacial advancement or retreat within the Tongass National Forest. To the west, the ice flows toward Endicott Arm, while smaller features like Brown Glacier carve through the high terrain. The international border is clearly marked by fixed points such as Boundary Peak 70, showcasing the remote surveying efforts of the era. This document is a primary record of the glacial extent and topographic state of the region before modern climate shifts, providing an essential reference for environmental historians and cartographic collectors focusing on the Alaskan panhandle.