2018 Map of Sumdum A-3 SW

About this map

The Tongass National Forest dominates this coastal Alaska landscape, where high mountain ridges meet the waters of the Frederick Sound. The terrain is defined by a series of prominent summits including Jefferson Peak, Rodman Peak, Hancock Peak, and Powell Peak, which rise sharply above the forested slopes. Along the intricate shoreline, Point Vandeput marks a significant peninsula projecting into the sound, while Spurt Point and Wind Point define the entrance to the deeper waters of Thomas Bay. Inland, the map reveals a system of freshwater bodies and connectivity, featuring De Boer Lake and Spurt Point Lake. The latter is accessible via the Spurt Lake Trail, illustrating the limited but critical human access points within this maritime wilderness. This survey details a transition from alpine peaks to sheltered marine environments like Porter Cove, reflecting the geological and ecological complexity of the Petersburg Borough coastline.