A probably natural [marker stone](https://www.megalithic.co.uk/article.php?sid=26852) on the [Brecon Beacons](https://en.wikipedia.org/wiki/Garreg_Lwyd_(Black_Mountain)) in South Wales but with some interesting alignments to local features.
Created from 56 photos using [openMVG](https://github.com/openMVG/openMVG) and [openMVS](https://github.com/cdcseacave/openMVS).