10.4 mile loop course with rolling hills entirely within Salt Fork State Park, including hiking and bridle trails. Salt Fork 10 Mile Trail Challenge course will be run in the same direction of the Bigfoot 50k course. Challenging and aggressive trail run with minimal, but some, pavement - mostly access roads from trail to trail. Approximately 90% trail and 10% asphalt. Awards: top male and female; age group awards.Salt Fork 10 Mile Trail Challenge will not offer any refunds, transfers, or deferrals of entry fees once you are registered for the race.