Stones fans

I am glad to read that the famous stones at Callanish (or Calanais – the Gaelic version), are busy with more tourists (your report, 6 May).

The stones stand proud, as they have done for about 5,000 years. That means they are 1,000 years older than Stonehenge, that rather better-known monument in England. So they are Mesolithic, rather than Iron Age (as your report said) – the time of the brochs. Most of the visitors who go to the stones come away humbled by the astonishing achievement of our ancestors. The new visitor centre will give them a good Lewis welcome.

ALASDAIR H MACINNES

Granton Road

Edinburgh