A scarce map of the gold rush near Johannesburg

A detailed map of the gold fields on the environs of Johannesburg on a scale of 1:89,000, published soon after the settlement was established when gold was discovered in the area in 1884. It marks the various properties, with a list of the mining companies and their sphere of operations. Under the map is a 'Geological Section from Pretoria though Johannesburg to Roodepoort South of Klip River over 50 miles by Iones Beta 1889'. Gustav Arthur Troye (1860-1930) emigrated from Germany to the Cape Colony in 1877, aged 17, moving to Johannesburg in 1889 to compile this map. He then surveyed a six-sheet map of the Transvaal the following year. 'Iones Beta' was the pseudonym of John Ballot (1858-1922), a geologist who was one of a group who imported the first diamond drill to Witwatersrand in 1888.