A boulder of Millstone Grit on Ilkley moor with a perfect circular hole probably formed by a large inclusion hat has weathered out of the bedrock | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cooper, Ashley |
Taille de l’image : | 5173 px × 3449 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |