45th National Narrow Gauge Convention

Join us September 3–6, 2025, as we return to where it all began—Collinsville, Illinois, just outside St. Louis—for a celebration of craftsmanship, creativity, and community in the world of narrow gauge railroading. Hosted at the Gateway Convention Center, this milestone event brings together enthusiasts from across the country to experience outstanding clinics, world-class layouts, stunning modular displays, and top-tier vendors and exhibitors—all under one roof.

Whether you’re a seasoned modeler or just discovering the charm of narrow gauge, you’ll find inspiration around every corner. From “The Contest” to extra-fare tours and engaging non-rail activities, there’s something for everyone.