This section of the Hertogenwald lies on the left bank of the Hill, northeast of the Geitzbusch and east of the "Fagne der Deux Séries". It consists of two parts: the Grand Bongard in the north and the Petit Bongard in the south.
The place consists of a beech forest that is relatively isolated in the middle of an extensive massif. The flora and fauna are remarkable, especially with the presence of the two-nerved sedge (Carex binervis) and the black woodpecker (Dryocopus martius)
This place name of German origin means "orchard", probably due to the stands of birch trees on this gently sloping slope.
This zone is a typical fen: fens or groundwater-fed moors developed in moist depressions, hollows or river basins as well as on slopes in the area of spring water outlets. Due to their comparatively high nutrient content, the flora and fauna in fens is richer in species than in raised moors. Relatively undemanding plants such as cotton grasses, ferns, pipe grass and various sour grasses as well as some trees, but also species such as black grouse and whinchats, find a habitat here