Ontario's Historical Plaques 

Discover Ontario's history as told through its plaques

2004 - Now in our 14th Year - 2018

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The Precambrian Shield

The Precambrian Shield

Photo by Alan L Brown - Posted May, 2005

The Precambrian Shield

Photo from Google Street View ©2010 Google - Posted December, 2010

Plaque Location

The District of Muskoka
The Township of Muskoka Lakes
In Bala, in a parking lot south of the south bridge
on the east side of Road 169

Coordinates: N 45 00.684 W 79 36.876


Plaque Text

The surrounding rock formation is among the oldest of the Earth's crust. Formed between one and two billion years ago, it is part of the Precambrian Shield, which occupies two-thirds of the surface area of Ontario. Unsuited to agriculture, the Shield impeded early settlement, yet it contained the economic potential from which much of Ontario's wealth is derived. Beneath its surface lies the greater part of the province's mineral resources, while on it grows most of its timber and pulpwood. Thousands of lakes were carved in the Shield by the ice-sheets of the last glacial period and these, with its forests, offer unparalleled facilities for vacationers and sportsmen.



Muskoka Lakes Plaques

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