Canon Greenwell not only made one of the best trout flies in the entire universe
he was also pretty good at looking at stuff underground. Greenwell, a prominent archeologist and entomologist, was the first person to work out why the bejiggins a localised meteor storm seemed to have occurred on the Norfolk/Suffolk border. From the air Grimes Graves could be a slice of cheese or a section of the moon. It is neither. It is a neolithic flint mine. Nothing aids learning more than being outside of the classroom, it feeds imagination, it feeds emotion and cultivates memories.
We were asked by English Heritage to take a busload of kids to Grimes Graves and give them a large sandwich of history. They bit into that sandwich and it was all gravey.
Flint is one of the most remarkable elements of an unremarkable terrain around Norfolk. Rain falling through chalk over 70 million years filtered the element of silica out of dying tropical seabeds into fine black layers. These layers occurred at 3 levels and somehow Jimmy Neolithic only went and worked out that he needed that 3rd layer of the black stuff to make the choicest tools.