[2] The terrain has a series of levels with gently undulating relief, with escarpments forming plateaus typical of an area of sedimentary deposits.

Some areas hold the "golden grass" capim-dourado (Syngonanthus nitens) and the Buriti palm (Mauritia flexuosa), species that suffer from great extractive pressure in the microregion of Jalapão.

[4] Birds include parrots, toucans, emas, buzzards, blue macaws, Merganser, Inhambu-Carapé and sharp-tailed grass tyrant.

Large-billed antwren (Herpsilochmus longirostris), helmeted manakin (Antilophia galeata) and white-striped warbler (Myiothlypis leucophrys) are found in the forest formations of the unit.

[5] Other fauna include giant anteaters, tapirs, monkeys, caimans, pampas deer, jaguars, capybaras, anacondas, rattlesnakes and pythons.

Amphibians endemic to the cerrado include the Barycholos ternetzi, Proceratophrys goyana, Dendropsophus cruzi, Scinax constrictus, Physalaemus nattereri, Pseudopaludicola saltica and Leptodactylus sertanejo.

[4] The Serra Geral do Tocantins Ecological Station was created on 27 September 2001, and is administered by the Chico Mendes Institute for Biodiversity Conservation (ICMBio).

[2] The local population is generally very poor, depending on subsistence farming and cattle raising, and the sale of golden grass (Syngonanthus nitens).

[7] Due to the irregular land ownership situation, as of 2005 the area suffered badly from illegal burning to create new pasturage for cattle.

Man-made fires occur later in the season when the vegetation is drier and there is more wind, so last longer and cover larger areas.

[8] Paving of highways in the area and the connections between Ponte Alta, Porto Nacional and Palmas have attracted squatters who plant one or two crops, then make pasture for cattle.