Eire 91
Image by ryaner

There's a detail shot of the Ballinvally capstone on Anthony Weir's site - http://www.irishmegaliths.org.uk/seanchlocha6.htm - about halfway down the page.

Does anyone have any tips for searching for new rock-art in an area that already is know to have rock-art?

Is there a list of things to do like time of day etc?