Plan of the earthworks of Mam Tor taken from William Bray’s ‘Sketch of a Tour into Derbyshire and Yorkshire’ 1783. Even then the hillside was slipping away (area marked ‘I’ on lower left).
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Plan of the earthworks of Mam Tor taken from William Bray’s ‘Sketch of a Tour into Derbyshire and Yorkshire’ 1783. Even then the hillside was slipping away (area marked ‘I’ on lower left).