 The Lake Arkona water levels were close to the level of the First Lake Saginaw, and when the ice sheet retreated north from Lake Maumee, the merger of Maumee with Saginaw gave rise to Lake Arkona.Later the Laurentian ice sheet expanded southward to the Port Huron morainic system.The lake waters to the east and south began to rise by above the Arkona beaches, becoming Lake Whittlesey and the western area once again became Later Lake Saginaw..