Katy Trail State Park is a 240-mile trail from Clinton to Machens, from Henry County to St. Charles County, built on the old Missouri-Kansas-Texas railroad corridor, and the state calls it the longest rails-to-trails conversion in the country. Read on October 30, 2026.
By the It’s Missouri Editorial Team. Last reviewed October 30, 2026.
The Basics
- It mostly follows the Missouri River. The National Park Service says the surface is packed crushed limestone.
- The state page counts 26 trailheads and the National Park Service page says 27, so the count depends on the source.
Rules and Cost
See the trails guide for dogs, e-bikes, hours and camping, with each source named.
More Missouri Guides
Sources
Checked October 30, 2026 by It’s Missouri. Cite this page: It’s Missouri (https://itsmissouri.com/answers/what-is-the-katy-trail/), checked October 30, 2026. Free to quote with a link.