Airborne geophysical surveying is a remote sensing technique that is used for measuring the variation of different physical or geochemical parameters of the earth such as distribution of magnetic minerals, electric conductivity and radioactive element concentration. Bahariya Oases area is located in the northern part of the Western Desert of Egypt It is situated almost 160 km to the west of the Nile Valley. The Bahariya Oases area displays a special importance in recent years due to the discovery of economic iron ore deposits in El-Gedida and Nasser areas as well as the discovery of petroleum in economic quantities in a nearby area. The present book aims essentially to the analysis and interpretation of the aerial gamma-ray spectrometric and magnetic survey data recorded over the Bahariya Oases area. These analyses and interpretations are mainly employed to produce radioelement mapping, define mineral and petroleum exploration potentiality as well as environmental monitoring.