Aerial shot of the BACH area in 2000, looking west. The photographer is standing on a ladder about 15 feet above the action, so the image is at an angle from vertical. It shows a busy day in the life of the excavation of Building 3, where at least ten people are working comfortably. This might give an indication of how many could have lived in Building 3 during its prehistoric life. As we gaze at this photograph, we are like voyeurs peering into a very busy house, in which each member of the community knows exactly what he or she is supposed to be doing. For the archaeologists, the corners where they are working are familiar places, where they work for several days at a time. At the same time, the complete BACH area is created by work that goes on here for just a few months each year. At other times of the year, it is a very different place—empty of movement, sounds, and people. On the other hand, as we excavate, the familiar BACH ""place"" itself is transformed. As we go deeper below the surface, we create new, unfamiliar paths of entrance into the excavation area.