The Old Oyo National Park is located in the northeast of the state of Oyo in southwestern Nigeria. It covers an area of 2512 km ² and is located on the ridges of the Upper Guinea threshold. Was named the National Park which is situated in the park place Oyo -Ile, the historic center of power of the Kingdom of Oyo. The name of Oyo -Ile comes from the language of the Yoruba, which translates as Old Oyo (s Old Oyo ) means. The palace of the last kings of Oyo is located in Oyo - ile and is one of the most famous attractions of the National Park. This cultural significance is reflected in the motto of the National Park. This is Mix our glorious past with nature (s Blending our glorious past with nature ). The head office of the National Park is located in Oyo, Oyo Iseyin on the road. The Old Oyo National Park to be developed as one of the most promising projects to a gentle eco - tourism and science in Nigeria.

The topography of the national park is determined by a flat plateau that is interrupted only by a few surveys. Only in the northeast of the park, there are high granite rocks that protrude out of the plane, while the center of the park is criss-crossed by low hills and low mountain ranges. The height profile of the park includes an altitude range 330-508 meters above sea level. The largest part of the park is located in the water catchment area of ​​the rivers Ogun, Owu and Owe, only the northern region of the park lies in the catchment area of the river Tessi. On the Ogun Ikere Gorge Dam was built, the dams up a reservoir.

The vegetation of the park is determined by the Guinea Savannah, a savannah. The climate in the region is determined by a change from rain and dry seasons, but is referred to as extremely humid. The rainy season lasts from April to October and in summer reaches its highest intensity with the arrival of the West African monsoon. The daily mean temperatures range from 25 to 35 ° C.

The national park is considered the westernmost area of ​​distribution of the Buntkopf rock Hüpfers ( Picathartes oreas ).