The wall at the bottom of this unit is probably associated with one of the stable structures seen in the old map of burial hill and described in a previous post on this blog. 
Doug Bolender has created a 3D PDF that you can download and move around. The file will not work in the web browser (it will just be a blank page). You have to download it to your machine, and open it in a new version of Acrobat and allow it to run. Once up and running you can look down into the buckets, as well as the excavation.
Dr. John Steinberg has been a Research Scientist at the Fiske Center since 2006. He received his PhD in Anthropology from UCLA in 1997. Before coming to UMass Boston, John taught at UCLA and California State University Northridge. He is interested in the economic problems of colonization, both in New England and across the North Atlantic. He uses GIS and shallow geophysics to study settlement patterns to understand broad trends over the landscape. In addition to John's New England work, he has been studying the settlement patterns of Viking Age Iceland. John is the director of the Digital Archaeology Laboratory at the Fiske Center.
Doug Bolender has created a 3D PDF that you can download and move around. The file will not work in the web browser (it will just be a blank page). You have to download it to your machine, and open it in a new version of Acrobat and allow it to run. Once up and running you can look down into the buckets, as well as the excavation.