Extract of the Swindon area from the Geological Survey of England and Wales 1:63,360 geological map series [Old Series] Sheet 34 [Stroud, Cirencester, Fairford, Swindon, Chippenham, Marlborough Downs.] Decr. 1857. A beautifully hand-coloured map painted with watercolours.
The map is one example from c. 2,200 maps and sections dating from 1832 and released yesterday on the British Geological Survey OpenGeoscience service.
Bob McIntosh
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