Rainy Lake (French: lac à la Pluie; Ojibwe: gojiji-zaaga'igan) is a relatively large freshwater lake (360 square miles (930 km2)) straddling the border between the United States and Canada. The Rainy River issues from the west side of the lake and is harnessed to make hydroelectricity for US and Canadian locations. The sister cities of International Falls, Minnesota, and Fort Frances, Ontario, are situated on either side of the outflow of the river from the lake. Rainy Lake and Rainy River establish the boundary between the two countries.