Atalaia do Norte
Atalaia do Norte is the most western municipality in the Brazilian state of Amazonas. Its population was 20,398 (2020) and its area is 76,355 km², thus making it the third largest municipality in Amazonas and the seventh largest in Brazil. It is in the area of this municipality that find the Vale do Javari, an indigenous reserve that is inhabited until the present day by isolated indians also called ""arrow peoples"", indigenous ethnic groups that have had little or no contact with modernity.