The conceptual basis for the design was to draw attention to and honor one of the 'Champion' trees in England's National Arboretum. A large, hollowed mound defines the space around a majestic specimen and ramps up to create a miniature amphitheater. Seen from the outside, the earthwork is a sculpted object that frames the tree and distinguishes it from the surrounding grove. Inside the concave space, the form falls gently to an opening marked by the centerpiece tree.