The Opeongo Hills (sometimes called the Opeongo Mountains or Madawaska Highlands, particularly for the eastern-most hills) are a range of hills in Southern Ontario, near Algonquin Provincial Park. The hills stretch from Opeongo Lake in Algonquin Park in the west, along the Madawaska and Opeongo Rivers, towards the Opeongo Colonization Road, and extending towards the Deacon Escarpment (north of Killaloe, Ontario in Renfrew County), Bonnechere, Ontario, and Dacre in the east. To the east of the Opeongo Hills lie the Madawaska River valley, the Mississippi River Valley, and the Ottawa-Bonnechere Graben along the Ottawa River. The hills continue into Quebec across the Ottawa River as the Laurentian Highlands and the Laurentian Mountains. Its tallest peak is roughly 7 km northeast of Highway 60