By Area:
* North America: The North American Interior Plains cover approximately 4.5 million square kilometers (1.7 million square miles), stretching from the Arctic Ocean to the Gulf of Mexico.
* Canada: The Canadian Prairies, a part of the Interior Plains, are about 3.2 million square kilometers (1.2 million square miles).
* United States: The Great Plains of the United States, another part of the Interior Plains, are about 1.3 million square kilometers (500,000 square miles).
By Geographic Features:
* East-West: The Interior Plains stretch over 3,000 kilometers (1,900 miles) from east to west.
* North-South: The Interior Plains extend over 4,000 kilometers (2,500 miles) from north to south.
By Countries:
* The Interior Plains encompass parts of Canada, the United States, and Mexico.
It's important to note that these are just rough estimates. The exact size of the Interior Plains varies depending on the specific definition used.
Regardless of the exact size, the Interior Plains are a truly massive and important region. They play a significant role in North America's agriculture, energy production, and natural landscapes.
