Аннотация:The paper investigates the possibilities of high-resolution electrical prospecting based on the method of reflected electromagnetic waves (MREW) for preliminary estimation of the increase of reserves due to the unexplored flanks of operating deposits. Comparison of the geological section, made on the basis of exploratory drilling, with the data of the MREW profiling is given. It is shown that the use of modern equipment for MREW allows carrying out research to depths of over 170 meters, fixing tectonic faults and contacts of loose rocks, localizing karst zones, that provides the necessary information for determining traps filled with gold ore formations. The speed of the survey along with the cost of useful information obtained ensures high efficiency of the method.