Site Report from a Geophysical Survey at Point Lane, Cosheston, Pembrokeshire 2022
ECUS Ltd, Northern Archaeological Associates, 2022. https://doi.org/10.5284/1101226. How to cite using this DOI
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- DOI:https://doi.org/10.5284/1101226
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Title: Sveinbjarnarson, O.
(2022)
Geophysical Survey at Point Lane, Cosheston.
Ecus Ltd
: Barnard Castle.
Filename: 18194_Point_Lane_Geophysics_V2.pdf (3 MB) Description: Northern Archaeological Associates Ltd., now part of ECUS was commissioned by One Planet Developments Limited to undertake a geophysical survey of land north of Point Lane, west of Cosheston, Pembrokeshire (NGR: SM 9940 0395). The survey was required to assess the archaeological potential of the site and help inform any subsequent archaeological mitigation. The survey was carried out between 14-17 February 2022 and covered an area of approximately 9.7 hectares within three pasture fields. No designated sites exist within or in the immediate vicinity of the survey area. The Dyfed Archaeological Trust Historic Environment Record lists three sites within the survey area, two relating to place name evidence of former field names and one for a WWII Barrage Balloon Site near the easternmost field boundary. The word ‘castles’ appears in the names recorded on an 1841 parish tithe plan of all the fields within the survey area and one adjacent field to the north, this is seen as evidence of both a possible fortification in or near the area and of medieval open fields. No evidence of any fortification is visible in the survey data. One faint anomaly could be argued as having some potential to be an enclosure, though it is very weak. The ‘medieval open field’ interpretation of the field names is also difficult to corroborate with the survey data, as while the curving nature and strip form of many field boundaries around Cosheston are indicative of medieval agriculture in the area, little clear evidence of curving medieval ridge and furrow can be seen in the greyscale plot. The Barrage Balloon Site is described as ‘now demolished’ and was recorded in 1993 as an array of concrete tether blocks around a central block, though elements have since been buried. Dipolar anomalies within the eastern field could relate to iron fittings associated with the balloon site. The survey identified a small number of magnetic anomalies which could relate to previously unrecorded field systems and some isolated pits. Due to the partial masking effect of large amounts of background magnetic disturbance, of a probable geological origin, clear identification of smaller pit type anomalies has not been possible, along with the classification of fainter more diffuse anomalies and trends. Former recorded field boundaries are visible within the data, though to varying degrees of clarity. This may relate to their form as a hedgerow only, with little evidence of accompanying ditches. Agricultural ploughing trends of relatively modern origin are also visible. |
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