River Valley 100 Initially, two paved routes of 100 miles and 100 kilometers were mapped to enjoy the many trails and bike routes in the Mankato area. Over the years, the bike ride has evolved to include a 100 kilometer gravel ride, which has become the most popular segment. on the the last Sunday in August. 

The River Valley 100 began as an unsupported, free bike ride in 2013 and celebrates Mankato’s Minnesota river valley and its scenic gravel and paved roads. The free event is held on the last Sunday of August and offers several self-guided and non-supported routes, including the most popular 100k Courtland Gravel Loop, which takes cyclists northwest of Mankato along the river valley to Courtland, Minnesota, before heading south and east back to Mankato. Currently, the ride begins and ends at Locale Brewery in downtown Mankato. Cyclists of all ages and abilities are encouraged to join us.

Tickets:  River Valley 100 Tickets, Sun, Aug 24,  2025 at 8:00 AM | Eventbrite