Geralle National Park is primarily established to conserve endangered wildlife species of the country; gerenuk, giraffe, and elephants. The  National  Park has an area of  ~1800 km2  and the altitude in the area ranges from 800  to 1380  m  a.s.l.  GNP  consists of four major vegetation types:  grassland,  savanna land, bushland, and mountainous rocky areas with sparse vegetation.  It is bordered by the  Dawa River in the north and east and by the Kenyan border in the south.  So far,  about  36 mammal species and 183  bird species have been recorded from the park. Almost 25 percent of the countries endemic birds are inhibited in the area.