Seeing all the immpressive posts ,re. mountain passes and living up high,I am beginning to question the term highlander,as in Scotland,no one lives above 1000ft ( Tomintoul ). The next area to mine ,Grampian, is the highland region which although has Ben Nevis in it and a lot of very nice mountains in the west,notably the Cuillin on Sky. for the most part isn't high. Tomintoul is in Grampian,as is Cairngorm which due to its northern latitude 57 deg N. has artic flora and fauna on the summit.
I don't think I will ever acclimatise to high alltitude on my annual visit to family in the Alpajarra,area of Sierra Navada, but I certainly get used to cold wet and windy in Grampian.
Lee