The Filthy 50 is a beloved October gravel bike event in Lanesboro, Minnesota, drawing hundreds of riders each year to ride through the scenic backroads of Bluff Country. Set against rolling hills, wooded ridges, and golden fall colors, the route blends challenge and beauty, offering experienced racers and casual gravel riders alike the chance to push themselves while soaking in the Driftless Region’s stunning landscapes. The event starts and finishes in downtown Lanesboro, where spectators line the streets to cheer cyclists on and the community buzzes with live music, local food, and an energetic festival atmosphere. Whether you’re chasing a personal best or just out to enjoy a crisp autumn day on the bike, the Filthy 50 has become a signature highlight of Minnesota’s gravel season.