International Boundary from the Source of the St. Croix River to the Atlantic Ocean, Sheet No. 4

This beautiful color map of the international boundary from the source of the St. Croix River to the Atlantic Ocean (Sheet No. 4)was printed by the U.S. Geological Survey in 1924 and is based on surveys under the direction of both the United States and Great Britain in accordance with Articles I and II of the Treaty of 1908. Inset map shows area between Azesko or Mud Lake and Spednik Lake.

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