This is a circular mound planted with a spiral of beech trees to the side of the lake.

It would appear to have been a practical and ornamental use for the soil excavated to create the lake itself. Feuillé is an appropriate name as the word ‘folly’ is an archaic English term for a lush and overgrown area of bushes and trees and was likely to have derived from the French ‘la feuillé’ meaning leaf.