2021 Map of Petersburg D-1 SE

About this map

Shakes Glacier dominates the northern reaches of this topographic study, where ice and high-altitude terrain meet the international boundary between the United States and Canada. This landscape is characterized by the massive glacial flow feeding directly into Shakes Lake, a prominent water body situated at the foot of steep peaks including Castle Mtn. The entire region is contained within the Tongass National Forest, illustrating the remote wilderness of the Wrangell borough. The map details the complex drainage patterns and elevation contours of the boundary mountains, providing a precise record of the glacial extent and shoreline geometry at the start of the 2020s. This survey serves as a vital reference for understanding the hydrological relationship between the high ice fields and the coastal lake systems in this protected forest area.