There is a mine at Ninebanks, in Northumberland, that reaches a source of red ochre. It should be considered as a prehistoric monument. It's about a hundred metres through rock and then opens into a small chamber with a gooey pool of the stuff. Another site, nearer to the Knar, has it in hillocks on the surface.

Nearby are drystone walls that have been decorated by painting them with a burnt ochre wash. I think there's a railway bridge that has been painted too. Thomas Hardy writes about the ruddle seller in one of his stories and this might be the most recent recorded use for ochres. Daubing sheep. It's still called ruddle but is now a synthetic paint-type stuff.