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Part of Yorkshire Wildlife Trust Archive
Appeal to the House of Lords
Correspondence concerning legal action
Records relating to Thorne Moor
Correspondence relating to mining subsidence
Lower Derwent Valley Correspondence
River Derwent Biological Records
Papers relating to Water Level Management
Papers relating to Derwent Ings
Papers relating specifically to the effects of drainage on Derwent Ings.
Papers relating to CONSYDER
Correspondence and papers concerning CONSYDER, a group focused on the conservation of the Yorkshire River Derwent.