[4] In 1894 gold was discovered in the Calçoene River, which resulted in a declaration of an autonomous state under Brazilian protection by general Francisco Cabral.

[4] In May 1895, Camille Charvein, the Governor of French Guiana, sent troops to Mapá (nowadays: Amapá).

[6] The municipality is home to a World War II airbase built by the Americans which has been turned into a museum.

[9] It contains 6.32% of the 2,369,400 hectares (5,855,000 acres) Amapá State Forest, a sustainable use conservation unit established in 2006.

[10] It contains 3.08% of the 460,353 hectares (1,137,560 acres) Amapá National Forest, a sustainable use conservation unit created in 1989.