Dartmouth copper mine
From The Story of Dartmouth, by John P. Martin:
The site of John Cleverdon’s copper mine-pit is just a few yards to the right of the intersecting pathways shown in this photograph. A white birch tree on the level area there will locate the spot.
The summer house on Fairy Hill is at the right of the top. Wooden Park School stood on the high ground beyond the glacial boulders at top centre. New Park School is on the skyline.