The findings of the program have been extensive. Documentary Study has gleaned data which, when carefully examined, yields a more complete picture of 17th-century Jamestown than was thought possible. However, the picture is sketchy and needs the details filled in. For this reason, research continues in anticipation of bridging the gaps. Archeological work proved more fruitful than the most optimistic had anticipated during the initial phases of the work. The materials and information found beneath the ground at Jamestown have been astonishing in both quantity and type. Architectural and constructural findings are of various types. More than a hundred building-remains have been excavated. Some are only the footings for a frame structure, some are brick foundations in full outline, and others are well-preserved cellars with interesting structural detail. Associated with the sites are fragments of hardware, glass, roofing tile, and related building materials. Some of the building remains are those of the most prominent structures at Jamestown, such as statehouses and governors’ houses. Brick kilns have been found, one being the well-preserved ruins in the Association grounds, showing clearly that 17th-century Virginians made much of their own brick and roofing tile. Pottery manufacture has been documented as well as other such activities. Several types of early wells, often brick-lined, have yielded many objects dropped in accidentally, or by design, while they were still in use. Even road traces still exist. Some of them, considered in the light of documentary references, have made it possible to reestablish the route of the “Greate Road” formerly connecting the island and the mainland. The reopening of old property line ditches and the rediscovery of fence lines (by identifying old post holes) have aided immeasurably in locating property tracts. This information, added to that of the old land grants and survey plats, has made possible the location of many early landholdings and has helped in the study of the physical layout of the town. Other features uncovered include lime kilns, where the early Jamestown builders burned their own lime for plaster—occasionally found still clinging to basement walls—and brick drains.