2014 Map of Passage Island

About this map

Passage Island stands as a solitary landmass surrounded by the waters of Lake Superior in this northernmost reach of Michigan. Most of the territory shown on this sheet is defined by the expansive maritime boundaries of Isle Royale National Park, emphasizing the area's isolation and its role as a critical navigational waypoint. The island itself is sparsely labeled, focused on its topography and position relative to the main archipelago of Isle Royale to the southwest. This survey highlights the extreme coastal character of Keweenaw County, where the landscape is almost entirely water, serving as a specialized record of the remote shoreline and international waterway boundary at the beginning of the 21st century.