The Orange 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.
69 countries
China.
china
through middle asia
The River Severn flows through England and Wales.
The Karun River only flows through Iran.
Spain, Portugal.
Russia and China
Wales
It flows in Russia.
It runs through China.
The River Nene flows through the UK only, specifically England.