Massaranduba Extractive Reserve is in the municipality of Machadinho d'Oeste, Rondônia.

The main resource extracted from the forest is rubber, as well as nuts and copaiba oil.

[2] On 18 November 1991 the Massaranduba Forest Reserve was closed to settlement, deforestation, professional fishing, logging, mining and other activities that could compromise sustainable use other than the activities of small farmers, rubber tappers and fisherfolk.

Massaranduba Extractive Reserve was created by state decree 7.103 of 4 September 1995 with an area of 5,566 hectares (13,750 acres).

The purpose was to provide an area for sustainable use and conservation of natural resources by the agro-extractive population.