Serra do Navio, is a municipality located in the center of the state of Amapá in Brazil. Its population is 5,488 and its area is 7,713 km². In the 1947, Manganese was discovered in the area. Serra do Navio was built as a planned city to house the workers. On 22 June 1993, the capital of the municipality was changed from Água Branca do Amapari to Serra do Novio.

Amapá ( ) is one of the 26 states of Brazil. It is in the North Region of Brazil. It is the second-least populous state and the eighteenth-largest state by area. Located in the far northern part of the country, Amapá is bordered clockwise by French Guiana to the north for 730 km, the Atlantic Ocean to the east for 578 km, Pará to the south and west, and Suriname to the northwest for 63 km. The capital and largest city is Macapá. The state has 0.4% of the Brazilian population and is responsible for only 0.22% of the Brazilian GDP.