Taiga Shield Ecozone (CEC)
The Taiga Shield Ecozone is an ecozone which stretches across Canada's subarctic region. Some regions exhibit exposed Precambrian bedrock of the Canadian Shield, the oldest of the world's geological formations. The world's oldest rocks, dating to four billion years, are found in the Canadian Shield north of Great Slave Lake.
Read more about Taiga Shield Ecozone (CEC): Geography, Settlements, Climate
Famous quotes containing the word shield:
“The lichen on the rocks is a rude and simple shield which beginning and imperfect Nature suspended there. Still hangs her wrinkled trophy.”
—Henry David Thoreau (1817–1862)