The Vanderkloof Dam, situated between the Free State and Northern Cape provinces, has declined from 80.2% to 78.5% over the past week. The Vaal River System and the Orange River System ...

Vanderkloof is about 81 miles (130 km) away from the Gariep reservoir and is the second biggest dam in South Africa. The 3,187.557 million m3 reservoir was built in 1973 and opened in 1977.