Contains correspondence related to Countryside Commission's report 'The Coastal Heritage' (1970); issues raised at Executive Committee (Sep 1972); from East Riding County Council (ERCC) to George de Boer thanking him for comments related to extension of Heritage Coast designation and possibility of grant for improvements at Spurn (1973, 1974); from ERCC in relation to clearance of eyesores (Aug 1972).

Also two black and white photographs which appear to be of mud flats; minutes of meeting between Yorkshire Naturalists' Trust and County Planning Departments in order to aid future co-operation (Jan 1971); Coastal Preservation Policies Map (Mar 1973); Coastal Preservation Policies Map Explanatory Statement (Jul 1966).