A relief map from 1890 showing terrain features of South America. "South America is the fourth continent in size, and strikingly resembles North America in the arrangement of its relief-forms. It has, like the latter, a predominant mountain-system in the west, two secondary systems in the east, and three low plains intervening. The predominant mountain-system is called the Andes, and trends from the Strait of Magellan to the Isthmus of Panama, forming an unbroken mountain-wall." - Brewer, 1890.