Please take caution when traveling the Great Allegheny Passage where it shares a 170-foot paved right-of-way with Markleton School Road, at the intersection of Rockdale Road in Rockwood. For many years this has been a quiet intersection along the GAP, but a recently-opened nearby quarry is resulting in heavier-than-usual vehicular traffic, especially among trucks. We recommend that you dismount along this short, shared section, and walk your bicycle across Rockdale Road, taking extra care to stop and watch for vehicles on both roads.