Runners will have the chance to take in some unique scenery as a popular race returns. The Cumming-Forsyth County Chamber of Commerce’s Healthcare Association will present the fourth annual Boulder Dash 5K on April 13.Jason Mock, director of the chamber’s Small Business Services Center who oversees the association, said the run will again take participants from Northside Hospital-Forsyth, along Ronald Reagan Boulevard and through the Cumming rock quarry. Formerly owned by LaFarge, the quarry was sold in January to Bluegrass Materials Company.