1968 Map of Lyon Mountain

Water dominates the northwest quadrant with the southern reaches of Upper Chateaugay Lake, featuring Moffitt Island and Indian Point. The landscape is defined by steep relief, rising from the South Inlet to heights like Averill Peak and Norton Peak. Historical transportation is preserved in the form of an Old Railroad Grade and an Old RR Grade winding through the township of Bellmont, providing a clear record of earlier logging or industrial routes now integrated into the forest preserve.