Rapid River (Rainy River tributary)
The Rapid River is a river of Minnesota. It is a tributary of the Rainy River. Course. The Rapid River originates in Beltrami Island State Forest. It flows very near to Upper Red Lake Peatlands National Natural Landmark. It is a meandering stream flowing through a flat, fairly heavily farmed portion of Lake of the Woods and Koochiching Counties. It has three main branches, main, east branch and north fork. The Rapid River water basin is the third smallest on the Minnesota side of the Rainy Lake basin.