Orange River Crossing South Africa and Namibia28.7S 17.6E
The Orange River can be seen here flowing westwards through South Africa to the Atlantic Ocean. The river forms part of the international borders between South Africa and Namibia and between South Africa and Lesotho, as well as several provincial borders within South Africa.
Although the river does not pass through any major cities, it plays an important role in the South African economy by providing water for irrigation, as well as hydroelectric power.
The Orange rises in the Drakensberg mountains along the border between South Africa and Lesotho. It then runs westwards through South Africa, forming the south-western boundary of the Free State province. At the western point of the Free State, southwest of Kimberley, the Orange meets with its main tributary, the Vaal River, which itself forms much of the northern border of the province.
From here the river flows further westwards through the arid wilderness of the southern Kalahari region and Namaqualand in the Northern Cape Province to meet with Namibia at the 20th degree of east longitude. From here it flows westwards for 550 km, forming the international border between the province and Namibia’s Karas Region.