Oriximiná
Oriximiná is the westernmost and second-largest (by territorial area) municipality in the Brazilian state of Pará. It is also the fourth-largest in the country. Location. The city lies on the Trombetas river, northwest of Óbidos. The city is crossed by the Equator. Oriximiná is served by Oriximiná Airport located from downtown Oriximiná. Porto Trombetas Airport located in the district of Porto Trombetas away serves the population residing and working for the Mineração Rio do Norte S/A. Conservation. The north of the municipality contains the larger part (75.89%) of the Grão-Pará Ecological Station, the largest fully  protected tropical forest conservation unit on the planet. The municipality also contains the Rio Trombetas Biological Reserve, a strictly protected conservation unit created in 1979 to preserve the ecology and specifically to protect the Arrau turtle. The municipality contains part of the Saracá-Taquera National Forest, a sustainable-use conservation unit created in 1989. It contains 88% of the Trombetas State Forest, created in 2006.