Royal Commission aerial reconnaissance during the 2018 drought, between 13th and 17th July, identified a series of cropmarks showing the intermittent buried agger of the Roman road, flanking quarry pits or road side ditches suggesting a direct route between Carmarthen and Kidwelly, running south through Cwmffrwd and Idole (fossilised by a minor road), south past LiDAR evidence (500m of the low earthwork of the agger showing running north-south) and parchmarks of a single quarry pit at Fforest Uchaf (NPRN 415842, SN 421 144), as a faint parchmark with a flanking roadside ditch at Bwlch y Gwynt (NPRN 423818, SN 419 136), south to Llandyfaelog (no visible evidence), and then with striking parchmarks of a 460m length of agger and quarry pits south of Nantllan (NPRN 423819, SN 416 111) and low earthworks of a holloway and parchmarks of quarry pits below and to the east of the modern A484 road approaching Kidwelly between Pontmorlais cottage and Pant-glas (NPRN 423820, SN 418 096).

For images of the Nantllan Roman road see AP_2018_4710-17, 4749-52 and 5028-29. Extensive Roman quarry-pitting can be seen on the hillock to the east of Nantllan at SN 4177 1134.

References:

Driver, T., Burnham, B C, and Davies, J. L. 2020. Roman Wales: Aerial Discoveries and New Observations from the Drought of 2018. Britannia. 1-29.

Driver, T. 2021. Aerial Archaeology in Wales during the 2018 drought: Major Discoveries. Archaeology in Wales 59, 96-114.

T. Driver, RCAHMW, Jan 2019; revised 2023