Located in the north of South America, the middle and lower reaches of the Amazon River, between the Guyana plateau and the Brazil plateau, west of the Andes, east coast the Atlantic, cross the territory of the four countries of Brazil, Peru, Columbia and Bolivia, with an area of 5 million 600 thousand square kilometers (of which about 2200000 square kilometers in Brazil, about 1/3 of the territory of the country), It is the largest alluvial plain in the world. The Amazon plain is surrounded by tropical rain forests, rich in plant species and abundant in species, and abundant in animal species, especially in arboreal animals. The mineral deposits are mainly oil. Sparsely populated, the total population is about 15 million, including 100 thousand Indians living in dense forests. Since 1960s, there have been plans to organize the migration and development of agriculture and animal husbandry, develop natural resources, and have built the Amazon highway across the whole territory.
