The Great River Ridge State Trail is a multi-use recreational rail trail in southeastern Minnesota, United States. It is planned to run from the city of Plainview through Elgin to Eyota on the former right-of-way of a branch line of the Chicago and North Western Railway. Currently the final leading into Eyota are incomplete, but the rest of the route is paved and, south of Elgin, includes a parallel unpaved trackway for horseback riders and snowmobiles. An extension providing access to Carley State Park is also planned.