Electrical Resistivity (ER) and Ground Penetrating Radar (GPR) geophysical techniques have been used to characterize a number of glacial and postglacial geomorphological features occurring in the Tullamore region (Co. Offaly) located in the Irish Midlands. Lithological changes in the Quaternary sediments can be inferred from ER data. GPR has been used to classify and characterize the sedimentological and deformational structures within esker ridges, frontal moraines, glaciolacustrine sub-aqueous fans, lacustrine plains and glaciodeltaic sediments. A number of exposures on glacial sediments have been used as test sites to calibrate GPR data collected by a number of antenna frequencies, GPR surveys have been carried on top of the exposures and the results compared to the their sedimentological analysis. These surveys have facilitated the interpretation of the data gathered on areas where exposure was not available. The combination of both techniques (ER and GPR) on a survey line allows inferring the lithology and sedimentology of the subsurface. Furthermore, water table and lithological boundaries can be detected using these techniques.