(Missouri)
The Katy Trail State Park is a state park in the U.S. state of Missouri that contains the Katy Trail, the country's longest continuous recreational rail trail. It runs 240 miles (390 km), largely along the northern bank of the Missouri River, in the right-of-way of the former Missouri–Kansas–Texas Railroad. Open year-round from sunrise to sunset, it serves hikers, joggers, and cyclists. Its hard, flat surface is of "limestone pug". (Ref: https://en.wikipedia.org/wiki/Katy_Trail_State_Park)