This race was formerly known as Osage Hills Relatively Flat Marathon, half marathon, 10k and 5k. We expanded the course a bit to make a 25k loop with 1,100' elevation gain. There are 3 aid stations along the loop at miles 3, 7.5, 11, 14 and 15.5. The 50k course will run this loop twice. 

The 10k will run over to the bluffs and then winds over to the bike trails for some technical single track goodness. The 10k boasts nearly 500' of elevation gain and has 2 aid stations at miles 1.5 and 5. The course has a bit of everything from nice smooth and fast trails, to gently rolling double tracks, to technical rocky single track. Some of the trails run next to bluffs along Sand creek...so watch your step closely as you peek over the edge!

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