A gorge in northern Tanzania, 48 km (30 miles) long and up to 90 metres (300 ft) deep. The exposed strata contain numerous fossils (especially hominids) spanning the full range of the Pleistocene period.
Definition of Olduvai Gorge in US English:
Olduvai Gorge
proper noun-ˌwā
A gorge in northern Tanzania, 30 miles (48 km) long and up to 300 feet (90 m) deep. The exposed strata contain numerous fossils (especially hominids) spanning the full range of the Pleistocene period.