. . "Canadian Shield"@en-us . . . . "Laurentian Plateau"^^ . . . "0"^^ . "Laurentian Highlands"@en-us . "108821319"^^ . . "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"@en-us . . . "Laurentian Plateau"@en-us . . "0"^^ . "08821319-n"^^ .