The Chocoaré - Mato Grosso Extractive Reserve is in the municipality of Santarém Novo, Pará.

The Maracanã Marine Extractive Reserve protects the left (west) bank, and extends further north.

[4] The Chocoaré - Mato Grosso Extractive Reserve was created by federal decree on 13 December 2002.

Its objectives are to protect the livelihoods and culture of the traditional extractive population, and ensure sustainable use of natural resources.

[3] On 22 June 2005 the Instituto Nacional de Colonização e Reforma Agrária (INCRA: National Institute for Colonization and Agrarian Reform) recognised it as meeting the needs of 300 families of small rural producers, who would qualify for PRONAF support.