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Orange River

The Orange River is the longest river in South Africa, rising in the Lesotho highlands and flowing westward for about 2 200 km before entering the Atlantic Ocean at Alexander Bay on the Namibia-South Africa border. It traverses the Free State, Northern Cape and forms much of the boundary between South Africa and Namibia in its lower reaches. The river is a critical source of irrigation water, supporting extensive viticulture, citrus and other agriculture along its banks, particularly in the Northern Cape. Its basin also supports significant mining activity, including diamond and base-metal operations near its lower course close to Namibia's Rosh Pinah district. Several large dams, including the Gariep and Vanderkloof dams, regulate its flow for hydropower, irrigation and water transfer schemes that supply Gauteng and other regions. The river's lower reaches, near the Namibian border, run through arid, mineral-rich terrain associated with zinc and other critical-mineral deposits. It has historical significance as a boundary shaped by colonial-era treaties and remains an important geographic and economic reference point for cross-border development in the region. Water allocation from the Orange River is managed jointly by South Africa and Namibia under bilateral agreements. The river's ecological health and flow volumes are closely monitored given the competing demands of agriculture, mining and urban water supply.

Orange River News


Dr John Bristow
Importance of natural diamond comeback highlighted
5th October 2026 By: Martin Creamer

South Africa needs to find ways to build and sustain its alluvial diamond sector in particular, given this country’s “incredible” alluvial sector which hosts “exceptional” diamonds. Accompanying... 


From Reclaimed Land to Global Shelves: How One Northern Cape Community Built a R17 Million Raisin Export Business
5th October 2026

Onseepkans is a remote rural settlement of approximately 2,500 residents located along the Orange River in South Africa's Northern Cape. In recent years, the area has become the site of a... 


LHWP Phase II reaches 56.7% completion as three major bridges open
2nd October 2026 By: Natasha Odendaal

The long-delayed Lesotho Highlands Water Project (LHWP) Phase II has progressed steadily to 56.7% completion, with R24-billion of the R53-billion allocated to the project having been spent.... 


Haib project malachite
Haib copper project, Namibia – update
2nd October 2026 By: Sheila Barradas

The infill and expansion drilling programme has been completed. 


Image of malachite
Haib copper project, Namibia – update
4th September 2026 By: Sheila Barradas

Assay results continue to confirm broad, consistent mineralisation while technical studies and cost estimation are progressing towards publication of the prefeasibility study at the end of 2026. 


Iage of the Rosh Pinah mine
Rosh Pinah expansion, Namibia – update
3rd July 2026 By: Sheila Barradas

The project was more than 95% complete as at June 29, 2026. 


The Rosh Pinah Zinc mine
Rosh Pinah Zinc water treatment plant successfully commissioned
12th May 2026 By: Creamer Media Reporter

Investment advisor to long-term value-focused private capital funds Appian Capital Advisory has announced the successful commissioning of a water treatment plant at Rosh Pinah Zinc (RPZ) – an... 


The Northern Cape is highlighting the many opportunities it offers investors
24th March 2026 By: Rebecca Campbell

A high-ranking delegation from the Northern Cape provincial government recently highlighted investment opportunities in the province. The delegation was led by Premier Dr Zamani Saul, and included... 


Southern Africa’s Highest Weather Station to Boost Climate, Water and Ecosystem Research
Southern Africa’s Highest Weather Station to Boost Climate, Water and Ecosystem Research
1st December 2025

The South African Environmental Observation Network (NRF-SAEON), in collaboration with the University of the Free State’s Afromontane Research Unit (ARU), has installed the highest weather station... 


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pqt: 0.046s - ct: 0.089s - 187pq - 2rq
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