The Ituri Rainforest is about 63,000 km2 (24,000 square miles) in area, and is located between 0° and 3°N and 27° and 30° E. Elevation in the Ituri ranges from about 700 to 1,000 m (2,300 to 3,300 feet). The climate is warm and humid, as exemplified by the nearby city of Bunia, which however is at a slightly higher elevation. About one-fifth of the rainforest is made up of the Okapi Wildlife Reserve, a World Heritage Site.
It is also the home of the Mbutipygmies, one of the hunter-gatherer peoples living in equatorial rainforests characterised by their short height (below one and a half metres or 59 inches, on average). They have been the subject of research by a variety of outsiders, including Patrick and Anne Eisner Putnam, who lived on the banks of the Epulu River [fr] at the edge of the Ituri. They were also the subject of a well-known study by Colin Turnbull, The Forest People, which was published in 1962.