This thing on a long iron stalk appeared from the surface of a reservoir in West Yorkshire during a recent drought. The water was around six metres lower than average, and the 'thing' is a little under a metre in diametre. I assume it's some obsolete part of the filtration system, left 'tethered' to the lake bed like a dead mine. It has since disappeared back into the black, peaty water, which no light penetrates. I like to think of it down there, preserved in a peat solution like a huge iron eye in the darkness, until the next long drought.
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