Wit·wa·ters·rand 
(wĭt-wôtərz-rănd′, -ränd′, -wŏtərz-) Often called Rand (rănd)
(wĭt-wôtərz-rănd′, -ränd′, -wŏtərz-) Often called Rand (rănd) A region of northeast South Africa between the Vaal River and Johannesburg. It has been one of the richest gold-mining areas in the world since the discovery of gold there in 1886.