 North of the parkway, the state highway intersects SR 613 (Edmonds Road), which leads west to Big Spring Bog Natural Area Preserve.SR 89 heads straight north as Skyline Highway to McCarmant Hill, where the highway leaves Grayson County and enters the independent city of Galax as Main Street.The state highway crosses Chestnut Creek twice before meeting the western end of SR 97 (Pipers Gap Road).