It consists of a large island in the Uraricoera River that is covered by Amazon rainforest.

The Maracá Ecological Station was established by presidential decree on 2 June 1981.

A grid of trails was designed by the Roraima regional center of PPBio, and completed in March 2006.

[4] The conservation unit is supported by the Amazon Region Protected Areas Program.

[6] The White-bellied spider monkey (Ateles belzebuth) is a protected species in the reserve.