2021 Map of Grand Isle

About this map

The Saint John River forms a significant international boundary on this northern Maine landscape, separating the United States from Canada. The riverside settlements of Saint David and Grand Isle anchor the Upper Saint John River Valley, where the road network, including Main St and Old Post Office Rd, follows the natural contours of the river's edge. South of the river, the terrain transitions into a more interior woodland and wetland environment characterized by water bodies such as Germain Lake, Lavels Lake, and the winding Little River.