The ecological station covers parts of the municipalities of Nobres (82%) and Rosário Oeste (18%) in the state of Mato Grosso.

The purpose was to ensure protection of water resources and viability of movement of species of native fauna, preserve significant samples of ecosystems in the area, and provide controlled opportunities for public use, education and scientific research.

[7] The state park was reclassified as an ecological station on 13 November 2014, with redefined boundaries, now covering 11,328 hectares (27,990 acres).

An area of 727.9 hectares (1,799 acres) owned by doctor Filinto Correa da Costa was added.

The owner had suggested the expropriation, the area was over-stated by 40 hectares (99 acres) and the compensation of R$7 million was based on a valuation of more than double market prices.