It may be similar to HRS 785 except for its obvious cylindrical shape. Perhaps it represents part of a sub-marine slumping of hot volcanic ash? Welsh geology is not easy at the best of times - All thoughts on what it might are very welcome!
No EXIF information is available
Categories & Keywords
Keywords:boulders, craig celynin, cymru, erratics, geology, mysteries, rowen, tuff, volcanic ash, wales