sentences:  A preliminary survey led the investigators to speculate that much of the hill is underlain by a layer of Acheulean artifacts of about 2 hectares in size.A program was announced in 2008, which would spend three million Birr on construction of new health stations, at which time there were 45 health posts and two health stations in Chilga, providing health coverage for 88% of the woreda.Based on the 2007 national census conducted by the Central Statistical Agency of Ethiopia (CSA), this woreda has a total population of 221,462, an increase of 33.34% over the 1994 census, of whom 112,054 are men and 109,408 women; 20,745 or 9.37% are urban inhabitants.