Seth Bernard and Drew Davis working on a survey project of the colonial walls of Cosa, modern Ansedonia, in conjunction with the Cosa Excavations. One of the best preserved of all Mid-Republican fortifications, the walls of the Latin colony of Cosa were built in polygonal masonry in 273 BC. Professor Bernard and Drew are using a combination of digital and manual recording techniques to understand the building process behind the walls. They also visited a number of sites in the region of Tuscany to look at similarly built city walls, including the polygonal walls of Rusellae (Roselle) where they were joined by Jeff Easton.
Photos available here.