We present the most informative results of archeological and geophysical field studies of the Baraba forest-steppe over the last three years. The studies of the archeological sites of different types belonging to a wide time interval (~6000 BC-2000 AD) were carried out. Data on the presence, size, and configuration of archeological objects were obtained by magnetometry and electrometry. We studied contrast between the magnetic properties of the upper horizon of present-day soil and underlying substratum at archeological sites of different types and ages. Low contrast reduces amplitudes of magnetic anomalies above buried ancient structures. It has been shown that geoelectric methods are efficient in cases when magnetometry is not.