The Alto Rio Negro Indigenous Territory (Portuguese: Terra Indígena Alto Rio Negro) is an indigenous territory in the northwest of the state of Amazonas, Brazil. It is in the Amazon biome, and is mostly covered in forest. A number of different ethnic groups live in the territory, often related through marriage, with a total population of over 25,000.There is a long history of colonial exploitation and effective slavery of the indigenous people, and then of attempts to suppress their culture and "civilize" them. The campaign to gain autonomy culminated in creation of the reserve in 1998. The people are generally literate, but health infrastructure is poor and there are very limited economic opportunities.