The reserve of 624 hectares (1,540 acres) was created on 20 September 1982. The area at time of creation was 1,100 hectares (2,700 acres). The purpose is to fully preserve the biota without direct human interference other than actions to restore and preserve the natural balance, biological diversity and natural ecological processes. The reserve is in parts of the municipalities of Floresta, Inajá and Tacaratu in Pernambuco. It is administered by the Chico Mendes Institute for Biodiversity Conservation.
As of 2009 the Biological Reserve was a "strict nature reserve" under IUCN protected area category Ia. The climate of the surrounding area is dry and tropical with an annual average rainfall of 300 to 500 millimetres (12 to 20 in) and average temperature of 22 to 38 °C (72 to 100 °F). The reserve occupies the summit of an inselberg, or isolated elevation, and is an island of tropical rainforest in the Caatinga area. Tree species include Libidibia ferrea, Copaifera trapezifolia and Tabebuia. The grey-breasted parakeet (pyrrhura griseipectus) is a protected species in the reserve.