Vassununga State Park, State park in Santa Rita do Passa Quatro, Brazil.

Vassununga State Park is a 2,071-hectare protected area in Santa Rita do Passa Quatro, São Paulo, split into six unconnected sections: Capão da Várzea, Capetinga Oeste, Capetinga Lesta, Praxedes, Maravilha and Pé de Gigante. It preserves interior Atlantic semi-deciduous forest and cerrado on hills, cliffs and fluvial plains, where jequitibá-rosa trees stand out above the canopy.

Cattle farming gave way to coffee plantations from 1850, and landowners kept forest reserves to protect soil and water. The largest jequitibá-rosa forest belonged to the Vassununga Sugar Mill, which went bankrupt in 1969. State decree 52.546 of 26 October 1970 created the park, followed by decree 52.720 of 12 March 1971.

The park runs education programs that teach visitors about the forest ecosystems found here and how to protect them. You can see how these spaces are managed to balance nature with human activity.

The park sits about 245 kilometers from São Paulo and is reached via the SP-330 highway. Inside you will find walking trails and observation points scattered throughout the six sections for exploring the natural environment.

O Patriarca stands in the 900-hectare Pé de Gigante section, named for a great depression inside it shaped like a giant's foot. Its age of about 600 years is an estimate drawn from a neighbouring jequitibá whose rings were counted and whose trunk was carbon-14 dated to 400 years. The tree's deepest root reaches 18 metres down and its longest runs 30 metres sideways; its weight is put at 264 tons.