Jane - you are welcome to have your Dragon Pass be as flat as a pancake. However, Greg and I are both from far more mountainous parts of the world than Wales. Mount Diablo (which was my backyard as a little kid in California) is bigger than Snowdon. And anyone used to the Cascades or Sierra Nevadas knew that Diablo was not a "real" mountain.
And you should talk to my Oberbayerisch in-laws about mountains. They think that the Zugspitze is the only real mountain in Germany (and that you have to go to Tirol or Südtirol for real mountains).
Jeff