Within these regions are all the major types of biomes in the world. Mexico and Central America’s western coast are connected to the mountainous west, while its lowlands and coastal plains extend into the eastern region.
North America can be divided into five physical regions: the mountainous west, the Great Plains, the Canadian Shield, the varied eastern region, and the Caribbean. North America’s physical geography, environment and resources, and human geography can be considered separately. But at Panama’s narrowest part, the continent is just 50 kilometers (31 miles) across. In the far north, the continent stretches halfway around the world, from Greenland to the Aleutians.
The continent includes the enormous island of Greenland in the northeast and the small island countries and territories that dot the Caribbean Sea and western North Atlantic. North America, the third-largest continent, extends from the tiny Aleutian Islands in the northwest to the Isthmus of Panama in the south.
