Jalapão State Park

Jalapão State Park
Parque Estadual do Jalapão
IUCN category II (national park)
Dunes and Serra do Espírito Santo
Nearest city
Coordinates	10°21′32″S 46°41′56″W / 10.359°S 46.699°W / -10.359; -46.699Coordinates: 10°21′32″S 46°41′56″W / 10.359°S 46.699°W / -10.359; -46.699
Area	158,885 hectares (392,610 acres)
Designation	State park
Created	12 January 2001
Administrator	Instituto Natureza do Tocantins

Jalapão State Park (Portuguese: Parque Estadual do Jalapão) is a state park in the microregion of Jalapão in eastern , Brazil. It contains a variety of landscapes including cerrado vegetation, sand dunes and flat-topped plateaus.

The Jalapão State Park lies in the municipality of Mateiros, Tocantins, and has an area of 158,885 hectares (392,610 acres). The park covers the Espírito Santo dunes and mountains. It is relatively inaccessible, requiring a drive of about 600 kilometres (370 mi) over dirt roads. It contains flat-topped plateaus bounded by steep cliffs, constantly subject to erosion by rain and wind. Most of the park is in the upper basin of the , including the Novo, Soninho and Do Sono rivers. This in turn is part of the Araguaia - basin.

The park contains dry and wet grassland, campo sujo, strict cerrado, sparse dune vegetation, cerradão, gallery forest, riparian forest and semi-deciduous lacustrine vegetation. Rare species include Annona coriacea, Attalea eichleri, Chamaecrista oligosperma, Ditassa acerosa, Guettarda vibournoidese and Xylopia aromatica. Economically useful plants include Syngonanthus nitens, Mauritia flexuosa, Anacardium occidentale, Anadenanthera colubrina, Annona coriacea, Astronium fraxinifolium, Brosimum gaudichaudii, Dalbergia miscolobium, Eugenia dysenterica, Hancornia speciosa, Pterodon pubescens and Stryphnodendron adstringens. The Acosmium subelegans, Andira cordata and Parkia platycephala are endemic.