It says 18 miles but you don't have to go that far!! There are many different stops/ parking places along the path. It's in really good condition and paved. Excellent for running, especially if you enjoy running distance. When I don't run trails, this is my favorite place to go. About half the time I take my dog (on a leash). Typically I start in Howard and go towards Gambier and turn around. Also, it's usually not busy except I've found Saturdays are very popular.