2020 Map of Petersburg A-6 NE

About this map

Sumner Strait dominates this 2020 topographic record, illustrating a segment of the Alexander Archipelago where the open waters of the passage meet the eastern shoreline. The map focuses on the complex coastal interface within the Tongass National Forest, detailing the numerous small landmasses and outcrops that comprise the Barrier Islands. These islands are critical maritime landmarks in the treacherous waters of southeast Alaska, serving as natural buffers along the strait. The absence of roads or permanent settlements emphasizes the isolation of this maritime environment, highlighting a landscape defined entirely by its hydrography and federally protected forest lands. This survey captures the exact shoreline and coastal topography as it existed at the beginning of the 2020s, providing a precise spatial reference for the southeastern edge of Petersburg Borough.