Ottawa-Bonnechere Graben
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Facts and practical information
The Ottawa-Bonnechere Graben is a geological structure that coincides with a 55 km wide topographic depression extending from near Montréal through Ottawa. It is part of the Saint Lawrence rift system that also includes the seismically active Saguenay graben. This rift valley was formed when the Earth's crust moved downward about a kilometre between two major fault zones known as the Mattawa and Petawawa faults. ()
Location
Ontario
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Day trips
Ottawa-Bonnechere Graben – popular in the area (distance from the attraction)
Nearby attractions include: Astrolabe Lake.
Ontario