From Celtiberians to Romans: Combined geophysical (3D GPR and fluxgate gradiometer) prospection for the archaeological characterization of Castro de la Magdalena (León, Spain)

Introduction A 3D GPR investigation, combined with fluxgate magnetometer, has been carried out on a hill fort called Castro de la Magdalena in León (Northwest of Spain). The archaeological investigation started after remains of Celtiberian culture (dated from the first Iron Age) and a later Roman occupation were discovered in a town nearby. Figure 1: A shows the results of shallow excavations (15-30 cm) over the Roman settlement. B shows location of Roman villa and castro areas. C shows a sil..