2022
NY9839 : Greenfoot Quarry, Stanhope
taken 3 years ago, near to Crawleyside, County Durham, England
This is 1 of 5 images, with title starting with Greenfoot Quarry in this square

Greenfoot Quarry, Stanhope
A rare exposure of the Little Whin Sill, an igneous sheet of dolerite intruded into limestone rocks 300 million year ago.