This made me smile. From the top of Roseberry. It could almost be described as art but I doubt that is what the farmer at Aireyholme intended. A question for the intellectuals amongst you: does there have to be intent to create a work of art?
The teardrop island and the squat peninsular closest are where the ground is broken. They are at the limit of the ironstone mine workings of nearby Roseberry Mine. The ironstone seam was exploited by the bord and pillar method. After exhaustion the pillars were removed leaving the roof to collapse. Normally with tens of metre of rock above there is no impact on the surface but here the ironstone seam is so shallow it has given way in large patches.