Earth Resistivity Tomography (ERT) investigation of Machaerus Fortress

New campaigns to survey the structures and materials, explorative studies and specialist localized surveys permit constant up-dates to knowledge of the fortress and the village in a broader cognitive framework concerning both historical aspects and this directly tied to the material consistency of the architectural remains. The aforementioned initiative also offers new occasion for assessing the future potential of the research and the risk levels for the structures. The results of Machaerus may constitute a useful cognitive element for comparison with other sites/monuments in Jordan and offer occasions for reflection about the current management policy of the historical and artistic patrimony. In this work we present and discuss the results obtained following the application of the Electrical Resistivity Tomography (ERT) in the subsurface investigation of a portion of the Qala’at al Mishaqa.