Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Ngorongoro Conservation Area' has mentioned 'Africa' in the following places:
Occurrence Sentence Text Source
Protected area and a World Heritage Site in Tanzania, Africa
[1] The crater was voted by Seven Natural Wonders[20] as one of the Seven Natural Wonders of Africa in Arusha, Tanzania, in February 2013.
The Olduvai Gorge is a steep-sided ravine in the Great Rift Valley, which stretches along eastern Africa.
Criterion (x): Ngorongoro Conservation Area is home to a population of some 25,000 large animals, mostly ungulates, alongside the highest density of mammalian predators in Africa including the densest known population of lion (estimated 68 in 1987).