Since then there has been a more detailed scan which we await the results from.
Stone 4 was one of the stones scanned and revealed many carvings.
Walking round the stones yesterday one of the carvings was so obvious I took a photo of it and thought it was interesting to compare it to the laser scan.
Caption - Looking along the scanned area from the right. Note the axe heads in the foreground.
And here is my snap showing the carving - it is the one in the scan with two dots above it. Can you see the rest?