Hi all, I spotted a potentially really good source for map information: a digitised set of early 1950s 1:20000 Militair Geografisch Instituut maps, both topo and geo. I'll keep you in the loop on how the legal aspects work out. Sincerely, Mark -- Mark Van den Borre Noormannenstraat 113 3000 Leuven, Belgiƫ +32 486 961726