Thousand Islands level year-round, and support at least two living trees. The Thousand Islands archipelago is located at the outlet of Lake Ontario at the head of the Saint Lawrence River. The region is bisected by the Canada–United States border and covers portions of Jefferson and St. Lawrence counties in the U.S. state of New York, in addition to parts of the United Counties of Leeds and Grenville and Frontenac County in the Canadian province of Ontario. Geologically, most of the islands are located where a branch of the Canadian Shield runs south across the river to join with the Adirondacks. The
Thirty Thousand Islands kilometres west of Beausoleil Island are four more islands – Giants Tomb Island, Hope Island, Beckwith Island, and Christian Island. To the west of French River Provincial Park are many more islands, including Manitoulin Island, the largest freshwater lake island in the world. Many of the Group of Seven landscape paintings feature the Georgian Bay Shoreline and the adjacent windswept islands with their distinctive trees and large boulders, which are characteristic features of the Canadian Shield. Franklin Carmichael, A.Y. Jackson, Arthur Lismer, Frederick Varley, A.J. Casson and Tom Thomson all painted extensively along Georgian Bay. At that time, they came