[1] It adjoins the Tapajós Environmental Protection Area to the north and east and the Mundurucu Indigenous Territory to the west.

[3] The forest takes its name from the Crepori River, an important right tributary of the Tapajós, which rises in the Serra do Cachimbo at 450 metres (1,480 ft) on the border between the municipalities of Itaituba and Jacareacanga.

[4] Law 12678 of 25 June 2012 amended the limits of the Amazônia, Campos Amazônicos and Mapinguari national parks, the Itaituba I, Itaituba II and Crepori national forests and the Tapajós Environmental Protection Area.

[6] In the case of the Crepori National Forest, an area of about 856 hectares (2,120 acres) was excluded to allow for the Jatobá Hydroelectric Power Plant on the Tapajós river.

[3] The forest is home to species endemic to the Amazon basin such as the Amazon river dolphin (Inia geoffrensis) and tucuxi (Sotalia fluviatilis), and to the white-cheeked spider monkey (Ateles marginatus) and white-nosed saki (Chiropotes albinasus), primates whose presence in the Tapajós basin was not certain until their presence was reported in the forest.

Bird species endemic to the forest include the dark-winged trumpeter (Psophia viridis), Gould's toucanet (Selenidera gouldii) and lettered aracari (Pteroglossus inscriptus).