The studied area lies in the central eastern desert of Egypt west of Marsa Alam. It is limited by the latitudes 24° 30ˋ and 25° 30ˋ N and the longitudes 33° 00ˋ and 34° 30ˋE.The main aim of this study is to estimate the basement depth, the basement relief and consequently the thickness of the sedimentary cover in the study area. This study aims also to delineate the surface and subsurface structures within the study area at different subsurface levels. To achieve this study, the aeromagnetic data, geological information and the published studies on the study area were used. Basement Depth estimation is carried out by using the spectral analysis and Euler deconvolution techniques. The basement depth computed using the spectral analysis technique indicate depth values range between 1 and 2.1 Km. The greatest depth appears in the west, whereas the shallow depths predominate in the middle part while the basement is outcropping in the east . The depths of Euler anomalies range from <250 m to >1750 m. Most of the Euler anomalies coincide with the geomagnetic contacts. The surface and subsurface structural trends affecting the studied area were traced. Surface structural trends were traced from the geological map of Egypt (EGPC and CONOCO, 1987). The most important deduced surface structural trends are; ENE-WSW, NW-SE and N-S. Subsurface structural trends were traced from the reduced to the pole magnetic map, the second vertical derivative map and the downward continuation map at level 200 m of the study area. The main structural trends interpreted from the analysis of the aeromagnetic data arranged in decreasing order of abundance are; ENE-WSW, NW-SE and E-W trends