Is it my imagination or does the north half of this tunnel not have any chimneys? Also, there are some odd marks in the landscape that look like they're over the tunnel....have there been cave-ins and the ground has settle?
Hi there, no, it's not your imagination. the very dark coloured marks are bushes and shrubs, and the marks on the light green areas are what we Brits call spoil heaps. These are made as the chimney shafts were dug out,and the spoil was tipped away over the sides of the tunnel. In fact, these spoil heaps often look like lava flows, if you see what I mean. I hope this info proves useful to you.
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Photo taken in Catesby, Northamptonshire NN11, UK
Misplaced? Suggest new location