Derived from licensed data, Maps containing the digital salmon rivers data must display the acknowlegements: '\u00a9 Scottish Government. Based on digital spatial data licensed from the Centre for Ecology and Hydrology, \u00a9 NERC (CEH)' (preceded, if appropriate, by 'Some features of this map are') and 'Contains Ordnance Survey data \u00a9 Crown copyright and database right (year)'., Reports containing maps with the digital salmon rivers data also require the reference: 'Moore RV, Morris DG and Flavin RW, 1994. Sub-set of UK digital 1:50,000 scale river centre-line network. NERC, Institute of Hydrology, Wallingford'.
