Canadian Shield
Shield in Ontario, Canada
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The Canadian Shield, also called the Laurentian Shield or the Laurentian Plateau, is a geologic shield, a large area of exposed Precambrian igneous and high-grade metamorphic rocks. It forms the North American Craton, the ancient geologic core of... Wikipedia
Area: 8,000,000 km2
Province: Ontario
Coordinates: 52°00′N 71°00′W / 52.000°N 71.000°W
Region: North America
Sub-units: Laurentian Upland; Kazan
Unit of: North American craton