Zimplats, which is located on the northern part of the Zimbabwean Great Dyke, the world's second largest PGM deposit, consists of Ngezi opencast mine - a shallow ore deposit, Selous Metallurgical Complex - located 77km from Ngezi and where the ore is milled, concentrated and smelted and Hartley Platinum Mine - currently under care and maintenance.
Zimplats is located 150 kilometres southwest of Harare, Zimbabwe's capital, which is located in the north-eastern part of the country at an elevation of 1,483 metres. Zimbabwe enjoys a subtropical climate because of its high average altitude. Mean monthly temperatures in Harare range from 14°C in July to 21°C in October. An extended dry season occurs from May through October. Average annual rainfall increases generally from south-west to north-east, averaging, less than 400mm in the Limpopo Valley along the border with South Africa to more than 1,000mm in the Eastern Highlands.
The geologist and explorer Dr. Carl Mauch first recorded the Great Dyke in 1867, but it was not until around 1918 that the presence of platinum, along with nickel and copper, was noted in the rocks of the Great Dyke. The 2.6 billion-year-old Great Dyke is a sinuous, layered, mafic-ultramafic intrusion, which is 550km long with a width ranging between 4km and 11km.