1. Department of Mines, Geological Survey, Union of South Africa. Departement Mynwese, Geologiese Opname, Unie van Suid-Afrika. [cartographic material] = 2726B, 2727A 2726B, 2727A. Bothaville. Vredefort. Bothaville. Vredefort Yale Public content 1962. 2015-11-12T19:20:29Z. 2015-11-24T23:15:30Z. Geological Survey (South Africa). Printed by the Government Printer. English&Afrikaans. cartographic image. Public. South Africa, Bothaville Region, and Vredefort Region.