The Ahar-Arasbaran Zone is located in the province of East Azarbaijan. It is one of the twenty areas chosen by Geological Survey of Iran (GSI) Geomatics Division for grassroots exploration evaluation using geomatic modeling based on the following GSI data - 1:100,000 scale regional geology and silt geochemistry results, and Landsat TM data. Ahar-Arasbaran Zone is the first of several zones where the geomatic modeling was based on the geological environment criteria of the mineral deposit models of the United States Geological Survey (Cox and Singer, 1986) as well as the appropriate geochemical criteria for each model espoused by Dr. Hasani Pak.