Abstarct: Torbat-e Heydariye region lying on the Sabzevar chromite mextallogenic belt having an area of 3000 square kilometers is on the East of Iran. The belt contains small and medium manganese and chromite deposits of ophiolitic melange formations. The purpose of this study is to generating a mineral prospecting map for chromite-bearing deposits exploration in Northern Torbat-e Heydariye using a combination of traditional and modern techniques in GIS environment. The application of traditional exploration methods such as structural, geological and mextalometry and also some modern methods such as weight of evidence in the GIS environment are of some limitations. Thus a combination of traditional geological approaches and modern fuzzy logic is applied in the GIS environment to generate mineral prospecting map for northern Torbat-e Heydariye. Geological, linear structures, geochemical and remote sensing data were studied and processed in order to obtaining exploration characteristics. Evaluation of remote sensing data was performed by processing ASTER images using ENVI 4.2 to separate chromite-related alterations. Stream sediments geochemical data processing was done by consideration of zonality approach. According to zonality method application, zonality index was considered as criteria for chromite anomaly detection. Finally the mineral prospecting mapping of studied area was carried out by fuzzy logic using ArcGIS 9.2. According to mineral prospecting map by above mentioned methods two potential areas were determined and introduced for more detailed investigations. Then these two parts were ordered by means of traditional geochemical zonality. Among them, the more interesting area for exploration is the one roughly being on the Western North of the map near Cheng-e Kalagh. The mentioned part having an approximate area of 60km2 covers near 10 percent of the whole area being modeled. Also the whole potential area, including the eastern part (Petru) and western part (Cheng-e Kalagh) of the map having an area of 100km2 cover 15 percent of the studied area.