The entire GIS dataset can be downloaded in a single operation in either of two GIS formats: Idrisi (Version 14--Kilimanjaro) and GEOTIFF raster files. These are compressed self-extracting files for Windows, and thus must be uncompressed on a computer running the Windows operating system. After downloading, place the files in the desired folder and double click them. The Idrisi dataset will consist of pairs of files with the same name and the extensions .RST and .RDC. The GEOTIFF dataset will consist of pairs of files with the same name and the extensions .TIF and .TFW. For explanations of the cell values in the layers and other details, see the descriptions on the download pages for the individual layers: survey lot locations, survey zone boundaries, sampling strata and units, period-by-period occupation, districts, elevations, slopes, soilscapes and agricultural productivity, modern land use, and access to water.

For Idrisi files (as well as the AutoCAD .DXF files), click here to download the file GIS_IDRISI.EXE (3.2 Mb) and ask your Web browser to save it to a disk. The (Return here with your browser's BACK button if necessary.)