The Rootrock Trail Run at Briar Chapel puts runners to the test with 5K, 10K, or Half Marathon of stellar single-track. This popular, mid-fall, root-and-rock strewn trail run, is complimented by the Rootrock Mountain Bike Race, which is held the following day. Sprawling over 900 acres and located on the south side of Chapel Hill, NC, Briar Chap