The monument to the mining industry by sculptor David McGregor pays tribute to Johannesburg's mining origins. The group of gold miners represents a typical underground team of 1936. They face west towards Langlaagte where the Main Reef was discovered in 1886. The artwork symbolises the contribution of the mining industry to the wealth and prosperity of South Africa. It was also intended as a peoples' monument and celebrates the working people who built the city. The Transvaal and Orange Free State Chamber of Mines presented the sculpture to the City of Johannesburg in 1964.