These bolders are situated in a small area of the land at Horticap. Not easily accessible they are nestled in a part of the site not usually encountered. I use circular movements with the mark maker to create patterns on the stone. The stone is very hard and does not flake or break like the sandstone used at Brimham and Almias. The mark maker to my surprise generates a strong smell of an ancient organic petrol like odour! I am unsure why; is it because the stone contains materials from another time?!!!