2021 Map of Petersburg C-2 SE

About this map

Wrangell sits at the northern edge of this coastal survey, where the intricate geography of the Alexander Archipelago meets the mainland. This map illustrates the complex tidal environment of the Tongass National Forest, dominated by the silt-heavy expanses of Koknuk Flats and the protective landmasses of Sergief Island and Kadin Island. The topography reveals the interplay of freshwater drainage and saltwater channels, particularly around Binkleys Slough and the Cottonwood Islands. Significant coastal landmarks such as Point Rothsay, Garnet Ledge, and Green Point provide essential navigational reference points along the shoreline. The vast tidal flats and forested slopes shown here reflect the region's enduring reliance on marine transit and natural resource boundaries in Southeast Alaska.