Nature Park is positioned in two Counties, Požega-Slavonia and Virovitica-Podravina, and seizes upland forests of Papuk and Krndija mountains, and edges of agricultural fields. Total area of Nature Park Papuk is 33600 hectares.

Mountains Papuk and Krndija belong to the Slavonia highlands. The Slavonia highlands have a geographical position in Pannonian, low-laying area of Slavonia. Even though, the Slavonia highlands are not higher then 1,000 meters, their presence is very noticeable in the landscape. This is because the surrounding alluvial fields are on the 100 m height above the sea level, while the hillsides are only 100 m above the fields. The highlands are mostly covered with forests, what differ them from the surrounding landscape. They are, in addition, the most striking characteristic of the Eastern Croatia relief. The authentic forests are well preserved, and the forests of Pannonian beech tree and fir tree in higher areas are of special value.

Within the Slavonia highlands, Papuk is the most spacious and most interesting mountain, which together with Krndija mountain gives unique form of one relief and landscape. The Papuk and Krndija mountains are spread out from west to east. From the main mountain-ridge well intended are two spurs and a tract watered by a drainage basin in the direction north south. As a remarkable points, emphasis lays on peaks Točak (887 m), Papuk (953 m), Ivačka glava (913 m), Češljakovački vis (820 m), and Kapovac (792 m), which are spread out continuously, and have a function of water separator of the numerous tributary streams in between river Drava at north, and river Sava at south. The Papuk and Krndija highlands in the Nature Park Papuk, is an area hydrologically very rich with groundwater and underlying waters. Among streams and small rivers, which are directed towards the Sava drainage basin, most important are Brajza, Stražemanka, Veličanka, Dubočanka, Vetovka, and Kutjevačka rivers. Directed towards the Drava drainage basin are Voćinska river, Vojlovica and Kovačica, Pištanska, and Radlovačka rivers.

Within the Nature Park there are three protected objects/natural formations:

• Park forest "Jankovac"
• Geological monument of nature "Rupnica"
• Special forest reservation "Sekulinačke planine"