LevelSub-groupDescriptionLarge group of annotated maps and tracings showing the axe-flaking sites in Western Cumbria, collated and produced by Christopher Houlder, some dated 1962 and 1976 .ArchiveCHH - C.H. Houlder CollectionDateArchive Number6437763
LevelSub-groupDescriptionMiscellaeneous group of OS maps at different scales of Caernarvonshire and large scale topographical map of Great Britain, and map showing areas of high ground in Wales, collated by Christopher Houlder.ArchiveCHH - C.H. Houlder CollectionDateArchive Number6437760
LevelSub-groupDescriptionDistribution map entitled 'C.B.A. Implement Petrology, progress to 1959' giving percentages of sites examined in Wales and drawings on tracing paper of axe head finds from various sites in Wales, collated by Christopher Houlder.ArchiveCHH - C.H. Houlder CollectionDateArchive Number6437753
LevelSub-groupDescriptionLocation map showing the Graig Lwyd group of Axe Factories and maps showing the distribution of Graig Lwyd Products throughout Britain, collated by Christopher Houlder.ArchiveCHH - C.H. Houlder CollectionDateArchive Number6437752
