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Satellite image of the Manitou Islands
View of Lake Nipissing from North Bay. The Manitou Islands are in the distance.

The Manitou Islands are a series of small islands in Lake Nipissing, in Nipissing District, Ontario, Canada. The islands form a circle and lie 10 kilometres (6 mi) southwest of North Bay.



Samuel de Champlain visited the islands in 1613 and called them "pretty".[1] Fur traders found the island a handy resting spot, and often would camp overnight. Today the islands' sand beaches continue to be a popular resting and recreation spot for many boaters.

Lime was quarried on the islands in the 1880s when the Canadian Pacific Railway was built, and a lime kiln was operated to create lime for mortar.[1] Great Manitou Island, the largest of the islands, once held a dance hall and hotel, but it burned to the ground.[2] Uranium mining was conducted on Newman Island in the 1950s.[3]

Old timers tell a story of how the island is reportedly haunted, when starvation broke out after the Nipissing people were forced to flee to the island, following their battle with the Iroquois.


The total area of the islands is 100 hectares (247 acres), and the total perimeter is 5 kilometres (3.1 mi). The fours islands are:

Provincial park

Today the islands are protected as Manitou Islands Provincial Park.[4]


The Manitou Islands lie inside the Ottawa-Bonnechere Graben and are part of an eroded volcanic pipe,[5] leaving the multiple islands. The volcanic pipe formed by the violent, supersonic eruption of a deep-origin volcano. These volcanoes originate at least three times as deep as most other volcanoes, and the resulting magma that is pushed toward the surface is high in magnesium and volatile compounds such as water and carbon dioxide. As the body of magma rises toward the surface, the volatile compounds transform to gaseous phase as pressure is reduced with decreasing depth. This sudden expansion propels the magma upward at rapid speeds, resulting in a shallow supersonic eruption.

The Manitou Islands contain fenite, syenites, pyroxenites, amphibole, apatite, biotite, calcite, magnetite, monazite, nepheline, pyrite, pyrochlore, pyroxene and quartz.[6]

The nearby Callander Bay is also a volcanic pipe.

See also


  1. ^ a b Mackey, Doug (2004-06-18). "The aboriginal connection to the Manitous goes back centuries". Heritage Perspectives (Past Forward Heritage Limited). Retrieved 2009-06-08.  
  2. ^ Mackey, Doug (2004-05-21). "The Manitou Island Provincial Nature Preserve". Heritage Perspectives (Past Forward Heritage Limited). Retrieved 2009-06-08.  
  3. ^ Mackey, Doug (2004-06-25). "Mining on the Manitous…a thing of the past". Heritage Perspectives (Past Forward Heritage Limited). Retrieved 2009-06-08.  
  4. ^ "Manitou Islands". Ontario Parks. 2008-07-03. Retrieved 2009-06-08.  
  5. ^ "Background Geology of the North Bay area". Retrieved 2007-09-24.  
  6. ^ "Other localities - Canada". Retrieved 2007-09-28.   Site information taken from Woolley, Alan R (1987). Alkaline rocks and carbonatites of the world. Part 1, North and South America. London: British Museum (Natural History). ISBN 9780565009717. OCLC 220114352.  

Coordinates: 46°16′10″N 79°33′38″W / 46.26944°N 79.56056°W / 46.26944; -79.56056

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