2011 Map of Grindstone Island

About this map

Grindstone Island sits along the international boundary between Canada and the United States, anchored by the small settlement of Grindstone. This portion of the Thousand Islands region is characterized by a network of inlets and smaller landmasses, including Potter Island, Chub Island, and Watch Island. The island’s interior is navigated by a simple road system including Middle Rd and Head Island Rd, which connect the scattered residential points to local landmarks like Thurso Cemetery near the shores of Thurso Bay. This modern survey highlights the maritime geography of the area, detailing numerous coastal features such as Webster Point, McRay Point, and several surrounding islets like Peach Island and Flat Huckleberry Island. The map provides a clear view of the bay system, tracing the contours of Buck Bay and Flynn Bay on the southern reaches of the island.