(Minnesota)
The Heartland State Trail is a multi-use recreational rail trail in north-central Minnesota, USA. It runs 49 miles (79 km) between Park Rapids and Cass Lake, intersecting with the Paul Bunyan State Trail around Walker. The entire route is paved, with a parallel grass trackway along the southern half for horseback riding and mountain biking. The northern half of the trail has some parallel trackway for snowmobiles. A 4-mile (6.4 km) segment north of Walker traverses very hilly terrain to appeal to snowmobilers; other users can follow a marked alternate route on paved road shoulders. (Ref: https://en.wikipedia.org/wiki/Heartland_State_Trail)