Locating additional long-term groundwater resources in semi-arid regions of developing countries with growing populations is
an expensive undertaking. Simple geographic information system (GIS) techniques can be utilised to facilitate efficient application
of expensive geophysical techniques and test-drilling by functioning as an interdisciplinary integration and decision-making tool,
especially in data-poor and poorly mapped environments where more sophisticated GIS techniques are not applicable. The paper
demonstrates this in the context of the search for groundwater alternatives to the dwindling river water supply in the Boteti area of
the Kalahari region in Botswana.