Llangollen route 418, offering journeys to Wrexham and to London via Shrewsbury, Telford and Birmingham. The Ellesmere Canal was intended to connect the coal mines and ironworks at Ruabon and Wrexham to the canal network and thence to the sea via the River Mersey and the River Severn. The plans were altered, and instead of connecting Trevor northwards to the sea via the River Dee and southwards to the Severn, the canal ran eastwards to join the national network at Hurleston Junction on the Shropshire Union Canal near Nantwich. A feeder canal, navigable to Llangollen, was constructed from Trevor to tap
Llangollen with Langolen in Brittany. Above the town to the north is Castell Dinas Brân, a stronghold of the Princes of Powys. Beyond the castle is the limestone escarpment known as the Eglwyseg Rocks. The outcrop continues north to World's End in Wrexham. The area nearest the castle is the Panorama Walk, and a monument to poet I.D. Hooson from the village of Rhosllannerchrugog can be found there. The ancient parish of Llangollen was divided into three "traeanau" ("traean" being the Welsh for "a third"): Llangollen Traean, Trefor Traean, and Glyn Traean. Valle Crucis Abbey was established at Llantysilio in about