Blyvooruitzicht - Wikipedia
Blyvooruitzicht Gold Mining Company Limited (Blyvoor), has underground and surface operations and is situated on the north-western edge of the Witwatersrand Basin. Established in 1937, it was the first mine on the West Wits line. Production started here in 1942. Blyvoor has two main gold-bearing horizons: the Carbon Leader Reef (CLR), which is one of the principal ore bodies of the Carletonville goldfield; and the Middelvlei Reef, which is some 75 met