Carys Rountree crossed the finish line of her first 5K run with her mother by her side, their hands clasped in victory. The 8-year-old ran was among the hundreds who raced Saturday during the fourth annual Boulder Dash 5K. Organized by the Cumming-Forsyth County Chamber of Commerce’s Healthcare Association, the popular race passed through the Bluegrass Materials Company quarry, formerly owned by Lafarge. Rountree enjoyed the scenery as she officially completed her first 5K. The company was her favorite, though.