2021 Map of Petersburg D-2 NW

About this map

Tongass National Forest dominates this Alaskan landscape, characterized by dramatic elevation changes within the Coast Mountains. The interior terrain is defined by a series of prominent summits, including Church Peak, Dupont Peak, and the jagged Saw Peaks. Water systems carve through the glacial valleys, with the Patterson River flowing through the northwest and the Muddy River winding through the southern reaches. This modern survey illustrates how topographic features dictate movement in the borough, where the Muddy River Trl and North Blind River corridor provide the primary navigable routes through the high-altitude wilderness. The map reveals the intricate drainage patterns of the Petersburg Borough as it existed in the early twenty-first century, before changes in glacial margins further altered the watershed.