Missouris longest and most popular state park. Almost crosses the whole state. Great for strolling, jogging, biking, and getting close to nature -- much of it along the Missouri River. After Boonville, it takes off across the prairie. You can forget cities, and browse tiny villages that sprung up along the Missouri-Kansas-Texas (M-K-T, or Katy) railroad. A real treasure that the state acquired this rails-to-trails conservancy, building on an initial gift by the Ted and Patricia Jones family (as in the Edward Jones brokerages). So glad we have it nearby. About 60 feet wide, and over 200 miles long!