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The whole area to the northeast of Zoser pyramid, Saqqara,Giza,Egypt, is characterized by the distribution of a variety of tomb structures of the1st and 2nd Dynasties.The main objective of undertaking a gradiometer survey is to detect the ancient remains as well as other archeological features hidden in thisimportant area.Agradiometersurvey witharasterof 0.5 m  0.5 mhasbeencarriedoutovera surface area of 100 m Â100 m to achieve the purpose and the magnetic data were processed using Geoplot software in order to obtain high quality images of the hidden structures.The results obtained show the presence ofinterconnected large tomb structures composed of mud-bricks; some otherancient rooms and walls are also present.The historical background of the study area confirms the existence of such tomb structures

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An integrated magnetic study was conducted at Abu Sir, a locality in northern Egypt also known as the "Land of the Forgotten Pyramids." Two magnetic tools were applied over an area of 25,600 m 2 in order to trace and detect hidden archaeological features near the Temple of the Sun. The acquisition of the magnetic data was initiated by measuring the magnetic susceptibility of the topsoil samples collected within the entire study area. This was followed by a gradiometer survey to measure the vertical gradient of the geomagnetic field over a restricted area of 14,400 m 2 . The magnetic susceptibility results are characterized by high values in the middle of the study area and a small extension of high values to the southwest. This pattern may indicate the presence of ritual monuments. The magnetic susceptibility measurements identified regions of interest to be targeted during the gradiometer survey. The gradiometer results revealed the existence of numerous archaeological features of different shapes and sizes composed of mud bricks. These features may represent tombs, burial rooms, and dissected walls, and all of them probably belong to the 5th Dynasty of pharaohs. The depth of the expected buried archaeological features was estimated from the gradiometer results and is about 1.2 m for deep features and 0.42 m for shallow features.

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