Abstarct: In this thesis, magnetotelluric data are processed and interpreted in the north of Golestan province in Sufikum, Gomishan, Okhitapeh and Dashliboron. The purpose of this study was to determine the conductivity of ground laxyers and to investigate the potential of the mentioned areas for the presence of electrically conductive laxyers indicating the presence of possibly iodinated aquifer structures. The purpose of this study was to determine the conductivity of the substrates and to investigate the potential of the mentioned regions for the presence of electrical conductive laxyers indicating the presence of saltwater structures likely to be iodized. The components of the electric and magnetic fields are measured in four regions. The results obtained from the inversion of the data, show a reasonable consistent correlation with the geological structures of the region. Geologically, the region's formations include Quaternary alluviums, alluvial plains, Caspian sediments, clay and conglomerate and sandstone. From a comprehensive comparison of the resistivity sections along the profiles, it can be concluded that the surface laxyers with different depths are conductive. The inversion result revealed a highly conductive laxyers' iodine bearing saltwater structures which are in the depths of 450 meters in some profiles. Less conductive laxyers are identified among the conductive laxyers. Generally, baxsed on the inversion and identify of the conductive laxyers, the result represented that this area has a good potential for iodine bearing salt water reservoirs.