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NEW interactive maps from the National Library of Scotland (NLS) detail the stark changes to Scotland’s landscape over the last 80 years
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http://www.scotsman.com/news/new-maps-reveal-scotland-s-forest-fightback-since-1930s-1-4010900
Can be used with other background maps (and Bing satellite view) with slider to show both at different opacities.
http://maps.nls.uk/projects/landuse/index.html#zoom=8&lat=55.6962&lon=-4.4000