As of 2009 the Biological Reserve was a "strict nature reserve" under IUCN protected area category Ia.[3]
Ecologically it is a contact area between semi-deciduous forest and mixed rain forest, with many peroba trees, an endangered species.
An isolated fragment of forest, it is the only wildlife refuge in the region with great diversity of species.
It is located in the basin of the Ivaí River, which is extremely degraded, with fragile and vulnerable soil.[2]