Zuma Rock

Zuma Rock is a large natural monolith, or inselberg, an igneous intrusion composed of gabbro and granodiorite, located in Madalla, a town in Niger State, Nigeria. It is situated in the west of Nigeria's capital, Abuja, along the main road from Abuja to Kaduna, off Madalla, and is sometimes referred to as the "Gateway to Abuja from Suleja". Zuma Rock rises approx. 300 metres above its surroundings. It was once thought to be in the Federal Capital Territory but is actually located at the upper end of Madalla, a rural settlement in Suleja Local Government Area of Niger State.

Zuma Rock is depicted on the 100 naira note. It was used for a defensive retreat by the Gbagyi people against invading neighbouring tribes during intertribal wars.

Source: Wikipedia