Mont Donon is the highest peak in the northern Vosges. It is a Category 2 climb in the Tour de France. On Donon, there is an 80 metre tall lattice tower for TV transmission. Its TV transmission antennas are covered by a polymeric cylinder, which gives its structure a characteristic shape. An engraved block of sandstone near the summit commemorates the conception of Victor Hugo. Many archaeological remains of a Gallo-Roman sanctuary have been found on and around the top of the mountain.