An orographic map of South America from 1911 showing the primary mountain systems and general elevations, and major river systems. The map is color-coded to show elevations from sea level to over 12000 feet, with highlands in buff tints and lowlands in greens. Near-shore fathom contours are shown. The primary physiographic regions of Andes Mountains, Llanos, Sierra Parime (Highlands of Guiana), Selvas, Matto Grosso, Brazilian Mountains, Gran Chaco, Pampas, and Patagonia are shown, as well as the elevations of prominent peaks. An inset chart shows a cross-section of the Andes and Amazon Basin from Quito to Cape St. Roque.