Opeongo Hills
range of hills in Ontario, Canada
The Opeongo Hills (sometimes called the Opeongo Mountains or Madawaska Highlands, particularly for the easternmost 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. Its tallest peak is roughly 7 km northeast of Highway 60. At roughly 586 meters, it is the tallest point in Southern Ontario. The community of Foymount (along the former Highway 512, the Opeongo Line) is one of the highest settlements in Southern Ontario.
The Opeongo Hills are a continuation of the Laurentian Highlands, which extend into Eastern Ontario, towards Gananoque, and across the Ottawa River Valley into Quebec, and the Laurentian Mountains, which continue parallel to the St. Lawrence River, north of Montreal, Trois-Rivières and Quebec City.
The geography in this area of Central Ontario is dotted with rolling hills and forests with streams, lakes, and small waterfalls, typical of a place in the Canadian Shield.
The first European explorer to visit the region is Samuel de Champlain, in 1615, while exploring the area with the Wendat (Huron) natives.
The public source identifies “Opeongo Hills” as range of hills in Ontario, Canada. This brief keeps that definition visible, then builds a research path around Opeongo, Hills and range.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q7096553. Authority coordinates are 45.500, -77.670. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1615.
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This entry incorporates text from “Opeongo Hills” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.