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Copperheap Bay, Above Derwent
Copperheap Bay
site name:-   Derwent Water
civil parish:-   Above Derwent (formerly Cumberland)
county:-   Cumbria
locality type:-   bay
coordinates:-   NY25382171 (etc) 
1Km square:-   NY2521
10Km square:-   NY22

evidence:-   old map:- OS County Series (Cmd 64 10) 
placename:-  Copperheap Bay
source data:-   Maps, County Series maps of Great Britain, scales 6 and 25 inches to 1 mile, published by the Ordnance Survey, Southampton, Hampshire, from about 1863 to 1948.

evidence:-   old map:- Crosthwaite 1783-94 (Der) 
source data:-   Map, uncoloured engraving, An Accurate Map of the Matchless Lake of Derwent, ie Derwent Water, scale about 3 inches to 1 mile, by Peter Crosthwaite, Keswick, Cumberland, 1783, version published 1800.
image
CT2NY21P.jpg
item:-  Armitt Library : 1959.191.3
Image © see bottom of page

evidence:-   old text:- Postlethwaite 1877 (3rd edn 1913) 
placename:-  CopperheapBay
item:-  copper ore
source data:-   Book, Mines and Mining in the English Lake District, by John Postlethwaite, Keswick, published by W H Moss and Sons, Whitehaven, Cumberland now Cumbria, 1877; published 1877-1913.
image PST3p075, button  goto source
page 75:-  "... Six furnaces [Keswick Smelting House] were in operation in 1567, supplied chiefly with ore from the mines in Newlands; but small quantities were also brought from Caldbeck and Coniston. It is generally supposed that the ore was conveyed from the mines in Newlands to the western shore of Derwentwater, and thence by boats to Keswick. The place where it was embarked is called Copperheap Bay, from a mound of very impure copper ore which still remains to mark the place."

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