Heneb
Historic Environment Record
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Felin Bach or Felin Gaerwen, North of Dwyran
Primary Reference Number (PRN) : 6322
Trust : Gwynedd
Community : Rhosyr
Unitary authority : Ynys Mon
NGR : SH4495966676
Site Type (preferred type first) : POST MEDIEVAL WATER MILL
Description :
This site retains a small water mill, the wheel has gone, but the remains of gearing and three pairs of stones remain. It may be on the site of Tal y Bont mill, belonging to the monks of Aberconwy, but I think that mill is more likely to be part of the earthworks on the far side of the river. (Davidson 2002, p.27)
Felin Bach or Felin Gaerwen Corn Mill has now been converted, with apparent significant alterations to the structure and installation of septic tank and soakaway. However, many of the landscape features associated with the mill are still present and the wider area has high archaeological potential.
The former mill pond, shown on the Ordnance Survey 1st Edition 25 inch map of 1889, was located to the north and north-east of the former mill building. The mill race extends to the north of former mill pond past Gaerwen Farm, and its curving form, partly along the western side of the current access road, is visible on the OS Map up to SH44976706. The tail race discharged water to the south of the mill. Although the section adjacent to the mill has been filled in, it is visible from the footbridge at SH44946665 and appears to run south for another c. 100m until it reaches the footbridge at SH44986655. (Steele, 2016)
Source_79182 has been linked to this PRN as the most suitable approximate match, as a more precise location for the former miller's house, as noted on the Anglesey Council Index Card, could not be determined (Lambe 2026).
Sources :
Davidson, A. , 2002 , The Medieval Mills of Anglesey: Archaeological Threat Related Assessment (
© GAT)
Lambe, M. , 2026 , PRN 6322 Felin Bach or Felin Gaerwen, North of Dwyran
Roberts, J., Smith, S., and Reilly, S. , 2017 , Llanfair Hall, Dwyran: Archaeological Watching Brief ( © Gwynedd Archaeological Trust (GAT))
Steele, N. , 2016 , PRN 6322, Felin Bach or Felin Gaerwen, North of Dwyran
Royal Commission on Ancient and Historic Monuments , PRN 6322 , <1>
Events :
GAT44297 : The Medieval Mills of Anglesey: Archaeological Threat Related Assessment (year : 2002)
GAT46558 : Felin Fach, Dwyran: Photographic Record (year : 2009)
Related records
National Monuments Record Wales NPRN 24613 https://coflein.gov.uk/en/site/24613/
Compiled date : 24-05-1996
Last updated : 18-02-2026
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May 14, 2026, 11:49 am
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