Greater Maban (which means the people of the land) is a county located in the Upper Nile State of South Sudan.

Four rivers flow through the Greater Maban County: the Ahmar, the Yale, the Tombak, and the Yabus.

In September 2012, heavy rains and flooding were experienced in the Tombak floodplain.

They are largely occupied by people fleeing armed conflict in Sudan's Blue Nile and South Kordofan states.

The camps were initially supported by the World Food Programme, through food air drops, but since 2013 the UN Refugee Agency: UNHCR in partnership with NGOs are providing more stable relief services.