The aeromagnetic data of the Lambert Glacier – Prince Charles Mountains area provide a rather complex but surprisingly coherent image for studying the geology and tectonic history of this region. Several distinct structural units can be differentiated in the magnetic anomaly data. The aeromagnetic data from the Prince Charles Moun-tains and surrounding areas reveal the spatial boundaries of the Ar-chaean cratons at the Prince Charles Mountains and Vestfold-Rauer areas and suggest the existence of a previously unknown craton in Princess Elizabeth Land. The magnetic data differentiate the inner structure of the Beaver-Rayner Proterozoic mobile belt and the com-plex marginal belt of the Archaean cratons reworked by Mesoprotero-zoic to Neoproterozoic tectonism. The aeromagnetic data clearly indi-cate no obvious link of the Pan-African mobile belt in Prydz Bay with Lützow-Holm Bay, and provide no evidence that it extends inland towards the Mawson Escarpment or Grove Mountains. Thus, East Gondwana probably was not divided into Indo-Antarctic and Aus-tralo-Antarctic sectors as suggested by a number of recent studies.