2024 Map of Isles of Shoals OE N

About this map

Petit Manan National Wildlife Refuge anchors the southern portion of this maritime survey, protecting a small cluster of islands and outcroppings in the open Atlantic Ocean. The landscape is dominated by submerged and semi-submerged hazards that define the local seafaring character, including Duck Island and its surrounding formation at Northwest Ledges. To the north, solitary landmarks like York Ledge and the Triangles stand as critical points for navigation. This modern survey illustrates the coastal boundaries and protected areas off the York County coast, emphasizing the cluster of named rocks such as Shag Rock, Mingo Rock, and Southwest Ledge that create a complex environment for local nautical history and wildlife conservation.