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An English-style park surrounds the 15th-century fortress, a listed monument since 1840, and its 18th-century outbuildings. It contains a number of very old trees. In 1987, about 30 trees were registered as an arboretum by the Amiens Forestry Management Organisation, including an ancient white mulberry tree and giant sequoia, 200 years old, brought back from the United States in 1787 by the Marquis de la Roche-Fontenilles. Lindens, poplars, oaks and conifers comprise the rest of the arboretum, with notable specimens including "Acer pseudoplatanus", "Aesculus hippocastanum", "Carpinus betulus", "Carya ovata", "Chamaecyparis lawsoniana", "Larix decidua", "Picea excelsa" and "Pinus nigra corsicata".