2018 Map of Sumdum B-2 NW

About this map

Dawes Glacier dominates this high-altitude landscape along the international boundary between the United States and Canada. This 2018 survey reveals the steep vertical relief of the Coast Mountains, where icy tongues and massive ice fields carve through the Tongass National Forest. The map captures the remote wilderness of the Petersburg Borough, where the terrain is marked by prominent elevations like Boundary Peak 74, which sits directly on the border line. Unlike lower-elevation coastal regions, this area is defined by its lack of human infrastructure, focusing instead on the dramatic natural interface of glacier and peak in the southeastern Alaskan interior.