The Orange-Senqu River basin encapsulates a diverse landscape, from the temperate mountains of the Kingdom of Lesotho and the grasslands and savanna of central South Africa and southern Botswana, to the Nama Karoo and Succulent Karoo of western South Africa and southern Namibia.

Total Area: 1,000,000 km²
Riparian Countries: Botswana, Lesotho, Namibia, South Africa

ICPs working in the Orange-Senqu river basin:

• Australian Agency for International Development (AusAID)
• Department for International Development (DFID)
• European Commission (EC)
• European Investment Bank (EIB)
• Federal Ministry for Economic Cooperation and Development (BMZ)
• Institut de Recherche pour le Developpement (France)
• United Nations Development Programme (UNDP)
• United Nations Educational, Scientific and Cultural Organization (UNESCO)
• United Nations Environmental Programme (UNEP)
• World Bank (WB)

River Basin Organisations (RBOs) working in the Orange-Senqu river basin:

• Orange-Senqu River Commission (ORASECOM)
• SADC Water Division (SADC WD)

Projects within the Orange-Senqu river basin:

• A Water Secure Future for Southern Africa: Applying the Ecosystem Approach in the Orange-Senqu Basin
• Africa Water Governance
• African Transboundary River Basin Support Programme: Case of the Orange-Senqu River in Botswana, Lesotho, Namibia and South Africa
• Botswana IWRM: A demonstration project for sub-Saharan Africa
• Development and adoption of a Strategic Action Programme in the Orange-Senqu basin
• Economic Accounting of Water Use in the SADC Region
• GIZ - Transboundary Water Management in SADC Phase III
• Orange-Senqu River Awareness Kit (OSRAK)
• ORASECOM AFD/FFEM
• Preliminary study: Sustainable Development and Management of Transboundary Aquifers
• River Basin Dialogue (RBD)
• SADC Groundwater Grey Literature Archive
• SADC Water Information Sharing Hub (SWISH)
• Southern Africa Water Wire
• Support to Phase II of the Basin-Wide ORASECOM IWRM Plan
• Sustainable Development and Management of Transboundary Aquifers in SADC
• TV Documentary "Bridging Waters"

Agreements

• Agreement on the Establishment of the Orange-Senqu River Commission (2000)