Big Fork River
The Big Fork River watershed covers 1,326,947 acres; the river flows north 165 miles from Dora Lake (45 miles northeast of Bemidji in north-central Itasca County) to the Rainy River, which forms the Minnesota/Canadian border.
Watershed information
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Minnesota watershed information
Lake of the Woods
The Lake of the Woods lies on the border between the U.S. and Canada; the watershed covers 734,783 acres.
Little Fork River
The Little Fork River watershed is 1,179,520 acres, the main stem flowing 160 miles through north-central St. Louis County and heading northwest into Koochiching County. It flows more northerly until it reaches its confluence with the Rainy River about 11 miles west of International Falls.
Lower Rainy River
The Lower Rainy River Watershed is composed of a conglomeration of tributaries to the Rainy River, from International Falls and west to the Rainy River's pour point at the Lake of the Woods.
Rainy River - Headwaters
The Rainy River - Headwaters watershed covers 1,890,689 acres, starting in northern Cook and Lake Counties and flowing west/northwesterly into St. Louis County and the Canadian border waters.
Rainy River - Rainy Lake
The Rainy River - Rainy Lake watershed covers 583,791 acres. Open water makes up 75,815 of those acres and wetlands occupy another 84,851 acres. The watershed is 64% in St. Louis County and 36% in Koochiching County. The northern boundary is part of the international border waters with Ontario, Canada.
Rapid River
The Rapid River watershed covers 573,060 acres in northern Minnesota. Over 79% of the land in the watershed is owned or managed by state entities.
Vermilion River
The Vermilion River watershed, located within northern St. Louis County, covers 662,427 acres, or 1,035 square miles.