1. Canadian Shield - Noun
2. Canadian Shield - Proper noun
a large plateau that occupies more than 40% of the land area of Canada; it extends from the Great Lakes northward to the Arctic Ocean
Source: WordNetLaurentia is an ancient craton which forms the geologic core of North America; it formed between 1.5 and 1.0 billion years ago during the Proterozoic eon. citation The Canadian Shield is the largest exposure of this craton. Source: Internet
Explore the ancient heart of North America - the Canadian Shield - heading north from Voyageurs National Park in Minnesota to Northeast Greenland National Park, the largest, most northerly national park in the world. Source: Internet
One of the areas with the highest concentration of these robin-sized birds is the southern edge of the Canadian Shield among the mosaic of rocky farms and woodlands. Source: Internet
Here, rolling hills remain from the glaciation that once extended from the Canadian Shield to the Missouri River. Source: Internet
However, a route across the Canadian Shield was highly unpopular with potential investors, not only in the United States but also in Canada and especially Great Britain, the only other viable source of financing. Source: Internet
However, the eastern terminus of the proposed Canadian Pacific route, unlike that of the First Transcontinental, was not in rich Nebraskan farmland, but deep within the Canadian Shield. Source: Internet