2014 Map of Passage Island OE N

About this map

Lake Superior dominates this nautical boundary survey, where the international border separates the waters of the United States and Canada. This specific section of the border runs northwest to southeast, cutting through the northern reaches of Isle Royale National Park within Keweenaw County. The map provides a precise look at the maritime geography of the region before it reaches the northeastern tip of the archipelago. In the lower corner, the Gull Islands emerge from the lake, marking a remote rocky feature in the open water. The layout illustrates the intersection of public land survey divisions, including t68n r31w and t68n r32w, as they extend across the park's protected waters.