Northernmost Point on the Continental USA, Minnesota

The northwesternmost point on the Lake of the Woods is where the watery border between the USA and Canada becomes a straight cartographic line. East of this point the border meanders across 1,300 miles of waterways, until it picks up the 45^th Parallel at St. Regis, New York. West of here, the line follows the 49^th Parallel for 1,200 miles, into the Pacific Ocean. This point, known as the Northwest Angle, is the top of a small bit of US territory that extends north of the 49^th Parallel. Treaties establishing the border in the 18^th Century named the northwesternmost point of the Lake of the Woods as the limit of the water boundary. According to 19^th century surveys, this point actually lies 27 miles north of the 49^th Parallel, so the border was drawn due south from here to the 49^th, resulting in this northern bulge in the boundary. The actual point is in the water, and is unmarked.