Castel Focognano, survey and documentation of a central Apennine borough which has fallen from the provincial capital to a peripheral hamlet, now at risk of abandonment.

The Municipality of Castel San Focognano is located in Tuscany in the province of Arezzo. The first historical memory dates back to 1028, the castle stood in the middle of three ditches , above a precipitous eastern buttress of Pratomagnowirew and was surrounded by a double circle of walls. The Giannellini family maintained its possession until 1322 when it was conquered, after six months of siege, by the bishop of Arezzo Guido Tarlati. In 2012 the borough was to an accurate laser scanner survey, with this methodology a protocol for returning the works was conducted in order to obtain a detailed repertoire on the facades and floors of the village. The development of this path on the representation of the village was centered on the certification of the point clouds of the laser scanner survey. The laser scanner survey was accompanied by an accurate 2D photogrammetric survey, recalibrated on the projections of the facades of the point clouds, thanks to which it was possible to make the photoplanes of most of the fronts of the village. The study made it possible to create a database on the state of conservation of the small Casentino village, particularly accurate thematic maps were made on which a study was carried out on the degradation of the facades but also on the state of conservation of some parts of the pavement, in particular of those areas where the original stone pavement is still present. Ultimately this work allowed the establishment of a wealth of information and analysis on the state of conservation of this mountain village, which, however, is still in good condition, because of the depopulation that affects this type of settlement, it risks, before remaining uninhabited and then disappear forever.