Grand Portage State Park is a state park at the northeastern tip of the U.S. state of Minnesota, on the Canada–United States border. It contains a 120-foot (37 m) waterfall, the tallest in the state (though it is on the border with Canada and thus partially in Ontario), on the Pigeon River. The High Falls and other waterfalls and rapids upstream necessitated a historically important portage on a fur trade route between the Great Lakes and inland Canada. This 8.5-mile (13.7 km) path as well as the sites of historic forts at either end are preserved in nearby Grand Portage National Monument.