LevelSub-groupDescriptionHard-copy records relating to archaeological monitoring at Elan Valley Aqueduct:Ffrydd Wood Conduit Rehabilitation carried out by Headland Archaeology, 2018-2020. Headland Project No EVAF17. Comprising reports b & w negative and thumbnail prints, diary sheets and context sheets.ArchiveHAP - Headland Archaeology Projects ArchiveDateArchive Number6550241