The Wabash Heritage Trail is a 13.25-mile trail that runs along the Wabash River, which divides the cities of West Lafayette and Lafayette in Indiana. It is mostly single-track dirt, with some paved sections. The southern part of the trail starts at Fort Ouiatenon and heads north until it ends at the Tippecanoe Battlefield and Museum.

https://www.homeofpurdue.com/attractions/wabashheritagetrail.html

-submitted by Henry Howard

The Douglas State Trail is a 12.5 mile mixed use trail running between Rochester and Pine Island, Minnesota, with an intermediate trailhead in Douglas, MN (about 4.5 miles from Rochester).
 

-submitted by Nick Loyal