The Jukskei River in Gauteng, South Africa.
The name is taken from boerewors (Traditional South Africa sausage used as a reference to the Afrikaans language) and the Iron Curtain (The border between communist East and Capitalist West during
the Cold War)
This river lies between Pretoria(largely Afrikaans speaking) and
Johannesburg (largely english speaking).
Boerewors Curtain refers to the river that lies between them, You are going behind it when you cross the Juksei river from
Johannesburg and emerging from it, crossing from Pretoria.
The language barrier between the two cities.