Municipal boundaries are with: The climate is moist mesothermic tropical with an average annual temperature of 22 °C.

The average annual rainfall is high, around 1,770 milliliters, and the relative air humidity is about 80%.

The river system is made up of the Paranaíba and its tributaries, the Veríssimo, the Pirapitinga, and the Ribeirão.

During the colonial period the region was called Sesmaria das Rosas and was a stopping point for muleteers travelling from Minas Gerais to the old capital of Goiás.

The town, originally called Samambaia and later Cumari, after an indigenous plant, grew around the station.

There is modest production (fewer than 200 hectares) of rice, bananas, coconut, manioc, hearts of palm, and rubber.