
Geological Survey of England and Wales County Series 1:10 560 maps - Wales
Geological Survey maps at the 1:10,560 scale and based on the older Ordnance Survey County Series sheetlines. Welsh counties only.
1878 – 19861:10 5606 inch : 1 mile1:10 0001:25 000Cymru (Wales)
Find a sheet using the Ordnance Survey Map records search (National Library of Scotland)
The BGS 1:10,560/1:10,000 geological maps is a very complex series. Users are strongly advised to read the accompanying notes