The Afton Trail Run 50KM Trail Race, is one of the most challenging and beautiful trail races anywhere. The race was established in 1994 and is now one of the oldest, largest and most competitive trail races in the country, garnering national attention and attracting runners from all over the United States and beyond. Runners World says that Afton State Park has some of the most beautiful running trails in the country and once you've run we think you will agree. Afton State Park is located within the beautiful St. Croix River valley.

The start of the race is near the Visitors Center, in Afton State Park. It is a hilly, 25K loop (two loops for the 50K), winding through the park's trail system. For the most part, the trail is on well-established footing through the woodlands and prairie. There are long climbs, rising from the river bottom, up rocky ravines, and down again. 4,670 Ascent 4,670 Descent 9,340 Ft. Net Elevation Change