Date/time: Saturday, April 21 (Day 7 of the Riverboat Series), 6:30AM CDT
Early start: Yes, for marathon, half-marathon, and 50K; 5:30AM CDT.
Location: Tunnel Hill Trail, Vienna IL; On East Vine Street at city park and Tunnel Hill State Park Trail
GPS coordinates: N 37.41720, W 88.88986
Packet pickup: Late registration and packet pickup are available on race day, beginning one hour before race time at the start location.
Elevation: 387′
Course description: Out and back (2.184 miles total); finely-crushed gravel rail trail; very flat and shady course. (Despite the name, there are NO tunnels and NO hills on the portion of the trail we’ll be using!)
Number of Laps: 6 for half marathon, 12 for full marathon (subject to change)
Group dinner: Check Riverboat Series Facebook Group.
More information: Visit the City of Vienna website for more information about the Vienna area.

Register HERE!!

Check out the amazing aerial video shot by a drone flown over our course in Clayton, NM, during the 2015 Dust Bowl Series!
Click HERE to video the full-sized video on our YouTube channel.

Check out We're All in This Together, an insightful look into the very first 5-state, 5-day series, by author and series participant George Rose!


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Mainly Marathons | 1239 2nd Street N, #308 | Sauk Rapids, MN 56379