2021 Map of Petersburg B-6 NW

About this map

Kuiu Island provides the backdrop for this coastal study within the Tongass National Forest, illustrating a landscape defined by intricate shorelines and dramatic topography. The map details a series of deep water inlets, most notably the central carving of Alvin Bay, which nearly bisects this portion of the island. To the north, No Name Bay marks the coastal fringe, while Reid Bay sits at the southern edge of the sheet. The terrain is characterized by steep elevation changes, with the interior heights of the forest reaching down to the jagged tide-water edges. This 2021 update from the U.S. Geological Survey focuses on the natural hydrography and forestry boundaries of Southeast Alaska, capturing a wilderness area largely devoid of modern development or road networks.