A response to a previous issue of the Royal Geographical Society's Journal containing an article on the Pibor River.
The Pibor River, also called the River Pibor, is a river in Eastern South Sudan, which defines part of South Sudan's border with Ethiopia. From its source near Pibor Post it flows north for about 320 kilometres (200 mi), joining the Baro River to form the Sobat River, which is a tributary of the White Nile.
