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Riversdale
Map No. 3420, Riversdale, in South Africa’s official topographic survey at 1:250,000 from the country’s national survey organization, the Chief Directorate of Surveys and Mapping. The maps have altitude colouring and contours at 50m or 100m intervals, depending on the map edition, plus spot heights. Deserts, marshes, dry pans, perennial and seasonal water features, etc, as well as protected areas are shown. The maps present the country’s road and rail networks and include the usual information expected on topographic mapping at this scale, although in more rapidly developing areas road information may not necessarily be up to date. Also indicated are magisterial district and provincial boundaries. Latitude and longitude values are shown in the margins at 5` intervals together with South African grid co-ordinates. Typically, each sheet covers an area of one degree of latitude and two degrees of longitude. The projection used is Gauss Conformal. The legend is in English and Afrikaans.