I wonder what the Dutch claim are mountains in their wonderful country?.

I'll ask Remco, but the highest point in Holland is the 322m high Vallserberg, and I assume berg has the same translation from Dutch as it does German, being hill or mountain, and if I remember correctly, Thomas Manns Die Zauberberg (The magic Mountain) took it's title from a hill outside Lubeck, of just over 100m. Everything is relative I suppose.