Hi Torview and Lee.
I remember driving often to Exeter or Plymouth, can't remember which, and there was this marvelous reddish sandstone long 'cliff' on the right hand side of the main road.
Definitely not green.
Perhaps the red colour is not Exeter sandstone?
Strange how different binoculars show colours and contrast.
I was only pulling John's leg a little. Its decades since I was down the south-west and I don't remember sandstone down there. I used to stay in Exeter at the Station Hotel and visit the tin mines in Cornwall.
Lee