What is the Dutch equivalent of ordnance survey?
In the Netherlands the situation is slightly different. The orginization most like Ordenance Survey is the ‘Topografische Dienst Nederland’. They do sell maps on different scales, I have some 1:25000 ones from them and recently I have contemplated to buy a few 1:50000 ones but decided against them, only because I live where two maps meet and I would have to buy both sides and always use both. http://www.kadaster.nl/index_frames.html… (Dutch) or http://www.kadaster.nl/international-eng… (English, but I guess not all services.) Easier to get are the provincial maps published by the ANWB, the car owners assosiation (like the AA in the UK.) They have shops in many of the bigger towns, so their maps can be found often, they