Western of parts Iran mostly comprised of hard rock's formations such as sedimentary metamorphic and volcanic. The rocks are repeatedlyf olded and faulted.T he deptht o the basemento pography is shallowt o deepi n hard rock terain. The presents tudya ims at delineatingt he hydrogeologicafl ramework in hardr ock terrainb y using interpretedr esultso f electricalr esistivityd atag eneratedb y the author in the reconnaissancfeie ld visits. The vES conductedm ore than 100 locations
