That's interesting Parkeru. I live in a valley, though not at the bottom and when I told a work colleague where I was moving he said 'beware of valley-itis". I had to get him to explain and he said it's the condition of irritability and depression brought on by lack of daylight.

I was discussing this recently with a chap who was brought up in Todmorden, a steep sided mill town valley and he said there was one particular area of it that was deprived of light by the hillsides and tall mills to the extent that the sun never showed in the sky in winter and the children had a reputation for being withdrawn. I don't know how much was a local joke based on the topography and what was fact.