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The origin of terraces or andenes in the Andes is poorly understood, but they were being built by 2000 BCE. Agriculture became essential for the subsistence of a growing population after 900 BCE. People of the Huarpa culture and the later Wari culture (500–1000 CE) built terraces into the hillsides of the Andes in Peru. [4]
Terraces were built to permit agriculture in the rugged terrain of the Andes. The heartland of the Inca Empire was in the high plateaus and mountains of the Andes of Peru. This area is mostly above 3,000 metres (9,800 ft) in elevation and is characterized by low or seasonal precipitation, low temperatures, and thin soils.
In the South American Andes, farmers have used terraces, known as andenes, for over a thousand years to farm potatoes, maize, and other native crops. Terraced farming was developed by the Wari culture and other peoples of the south-central Andes before 1000 AD, centuries before they were used by the Inca, who adopted them. The terraces were ...
The earliest civilizations were on the hyper-arid desert coast of Peru. Agriculture was possible only with irrigation in valleys crossed by rivers coming from the high Andes, plus in a few fog oases called lomas. In the Andes, agriculture was limited by thin soils, cold climate, low or seasonal precipitation, and a scarcity of flat land.
There are three main deserts in California: the Mojave Desert, the Colorado Desert, and the Great Basin Desert. [5]: 408 The Mojave Desert is bounded by the Tehachapi Mountains on the northwest, the San Gabriel and San Bernardino Mountains on the south, and extends eastward to California's borders with Arizona and Nevada; it also forms portions of northwest Arizona.
La Paz, Bolivia, is the second-largest city located in the Altiplano (after El Alto) Volcanoes in Sajama National Park (Parinacota and Pomerape). The Altiplano is an area of inland drainage lying in the central Andes, occupying parts of northern Chile, western Bolivia, southern Peru and northwest Argentina.
The Bolivian Andes principally produce tin, although historically silver mining had a huge impact on the economy of 17th-century Europe. There is a long history of mining in the Andes, from the Spanish silver mines in Potosí in the 16th century to the vast current porphyry copper deposits of Chuquicamata and Escondida in Chile and Toquepala in ...
The Andes mountain range as seen from a plane, between Santiago de Chile and Mendoza, Argentina, in summer. The Andes (/ ˈ æ n d iː z / AN-deez), Andes Mountains or Andean Mountain Range (Spanish: Cordillera de los Andes; Quechua: Anti) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America.