That's what we are doing at Thornborough - but actually, taking it back to the pre glacial state by removing the overlying gravel. The lakes left behind serve to represent the post glacial flooding. A key part of this concept to to remove all of the mess left behind by man after the ice age - Neolithic, Bronze Age, Iron Age remains all have to go.

Perhaps once we are finished, you'd like to borrow our stone crusher - much more affective than heat treating the stones to get rid of them.

That's humans for you - always leaving litter lying around - why do we never think of future generations.