This is a must have;
http://pages.rapha.cc/art-n-design/the-rapha-guide-to-the-great-road-climbs-of-the-netherlands
Best I've seen so far today.
@harpoonist started
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This is a must have;
http://pages.rapha.cc/art-n-design/the-rapha-guide-to-the-great-road-climbs-of-the-netherlands