page_title: Abergwyngregyn
section_title: Bont Newydd
hierarchical_section_title: Abergwyngregyn / Aber Valley / Bont Newydd
caption_attribution_description: English: Bont Newydd over Afon Rhaeadr Mawr Bont Newydd is a stone arched bridge that spans the river at the confluence of the Afon Rhaeadr Fawr and the Afon Anafon in the Aber Valley
context_page_description: Abergwyngregyn is a village and community of historical note in Gwynedd, a county and principal area in Wales. Under its historic name of Aber Garth Celyn it was the seat of Llywelyn ap Gruffudd. It lies in the historic county of Caernarfonshire.
  It is located at grid reference SH653726, adjacent to the A55, five miles east of Bangor, eight miles west of Conwy.
  The Aber community, which covers an area of 2,970 hectares, has a population of 240.
context_section_description: The single barrel-vault bridge at SH662720 spans Afon Aber, providing a roadway across the river, some 25 ft (7.6 m) in width. The date of construction is unknown, but its existence was marked on the Ordnance Survey map of 1822. The bridge provided a safe crossing for drovers leading animals on a Drovers road up the valley. Large stones in the river under the bridge mark the site of an earlier ford.
  Aber is the coastal crossing point for the ancient drovers and later Roman road that led across the Lafan Sands to Anglesey. The Roman road from Chester crossed the river Conwy south of Tal-y-Cafn, connected with the fort at Conovium Caerhun by a short branch, then led up via Rowen and Bwlch-y-Ddeufaen, the Pass of the Two Stones, as an engineered overlay on top of the earlier British trackway, into Snowdonia.
  The Roman road descends down Rhiwiau, the valley between Llanfairfechan and Aber, follows the coastal route west, crosses the river by means of a ford, passes by the church and leads towards the major Roman fort at Segontium, Caernarfon.
  The drovers road from Anglesey came into the settlement on the valley bottom on the west bank of the valley bottom, where provision was made for the animals to be penned and shod, and the feet of the geese to be coated in pitch, and then followed the valley to join with the Roman road.
  Three Roman milestones have been discovered in the area. Two of these, found in 1883 in a field called Caegwag, on the farm Rhiwiau Uchaf SH679727 are now in the British Museum, London.
caption: Bont Newydd
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