click to enlarge
On the surface, unsurprisingly there is top-soil below which is a thick layer of boulder clay - presumably from the Ribble Valley Glacier.
Most interestingly though there is then another layer of soil, below which is rock, limestone in this part of the Dales. That intermediate layer of soil must have been there when the glacier swept over it many thousands of years ago. So far no hairy mammoths have emerged though.
This fits with what we have observed on our site. The bottom layer of rock is at just the right level for the foundations of the water tower, comfortingly.
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