2017 Map of Petersburg D-2 NW

About this map

Patterson Glacier and the high elevations of the Coast Mountains dominate this 2017 study of the Tongass National Forest in Alaska. The landscape is defined by its glacial activity and dramatic vertical relief, with numerous named summits including Church Peak, Saw Peaks, and Rodgers Peak providing fixed points across the ice and rock. In the lower elevations, drainage patterns are established by the Muddy River and N Blind River, which carry meltwater from the high peaks toward the coast. This map documents a largely roadless wilderness, focusing on the natural topography and the immense footprint of the Patterson Glacier during the early 21st century.