2017 Map of Petersburg D-4 SW

About this map

Kupreanof Island dominates this coastal landscape, where the tidal waters of Duncan Canal cut deep into the timbered interior of the Tongass National Forest. The map documents a rugged wilderness setting defined by sharp elevation changes, rising from the shoreline at Goose Point to the high summits of Portage Mtn and Duncan Peaks. Significant for its depiction of local transport and infrastructure, the sheet tracks the White Alice and Mitchell-Tonka routes through the southern terrain, providing essential context for the region's mid-century communication and logging history. Smaller hydrological features like Petersburg Lake and the winding Duncan Cr illustrate the drainage patterns that have shaped the island's geography, while coastal markers such as Indian Point and Copper Slough serve as critical reference points for navigation and local history.