The test-trench general plan correlated with stratigraphic logs and contour lines provides an instant overview of the current and former topography. The figures in blue correspond to the altitude at which the water table appears. The stratigraphy is even across the plot, and silting of the former bay is seen in the various sedimentary deposits; rivers and flooding formed channels in silting, similar to ones still visible in the surrounding landscape, or which have recently silted up.