So today is another day of data processing for the Portus and Isola Sacra surveys. This morning covering the main stretch of magnetometry data from the central part of the Isola, processing in Geoplot, and checking through the data grid by grid as a quality control check. All okay so far, with some issues of heading error caused by the enclosure fences around some of the smaller particelli. Interesting features of the dy include more canal-type anomalies sub-dividing the landscape. Really hope that will be possible to carry out some augering across some of the archaeological and fluvial features at some stage. This would fit in well with the sample analysis of magnetic susceptibility from Jean-Philippe Goiran and Ferreol Salamon’s soil samples.