Blossoming among spoil heaps: how 1,000 years of lead mining gave birth to banks of pansies and pennycress

A t first, the small purple flowers are hard to spot in the weak May sunshine. Slowly the drifts of delicate mountain pansies, along with the white rosettes of alpine pennycress, begin to jump out, scattered across an area little bigger than a football pitch, on the banks of the River Allen in North...

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