This paper presents results of a study of shallow reflection seismics carried out in tin fields of Kinta Valley, Malaysia. The main objectives of the experiment were to develop a field procedure to obtain and identify reflections from the irregular trough-and-pinnacle topography of the limestone bedrock, and to give recommendations for updating the existing data-acquisition system. It is concluded that clear reflections can be obtained from the bedrock using only a hammer and the signal-enhancement seismograph. The same is the case over tin-mine water pools where a high-frequency seismic system was used with energies less than 300 Joules. On the basis of theoretical and experimental results, it appears that, with a little updating of the existing system by adding a new source and suitable detectors etc., the reflection seismic method can help in a detailed delineation of the bedrock and determination of thicknesses of alluvium. The procedure discussed here is specially suited to exploration and exploitation of tin ore in small areas of the size of a tin mine. The consequent savings in time and money are tremendous.