Here we will turn to the intrasite surface surveys in order to answer some of the questions on urban organization that Adams’ regional surveys tackled for overall settlement on the Mesopotamian plain. I will focus on our work at Mashkan-shapir, using the data from the other surveys as appropriate, since that project was specifically designed to provide a general view of that Mesopotamian city.
The most striking aspect of this survey was the degree to which Mesopotamian cities were broken up into different sectors, both by canals and by internal walls. Similar canals can be seen in the aerial photographs from Larsa and Ur and have been identified at Uruk (Van Ess, personal communication). Internal walls seen in the aerial photographs taken at Mashkan-shapir separate administrative and cemetery areas from residential districts, and they were found between residential districts in the course of surface scraping on the much earlier West Mound at Abu Salabikh and surrounding the residential district attached to the Temple Oval at Khafajah (Postgate 1983; Delougaz 1940). The internal canals - which resulted in the multi-moundedness characteristic of Mesopotamian urban sites - together with these walls, served to divide the cities into a number of sectors.
Mesopotamian cities were physically dominated by the main temple, raised high on a ziggurat or at least on a high platform. Much as skyscrapers mark modern cities or the spires of cathedrals their medieval counterparts, these features allowed the cities to be seen from a long distance - often from the next city down the river. However, these were generally not located in the center of the city, but on the periphery, perhaps as a way of ensuring the seclusion of the sacred sector. This pattern is seen clearly both at the most sacred city of all, Nippur (Roaf 1990: 81) and at Mashkan-shapir where, as a new foundation, the positioning must be ascribed to deliberation rather than chance. Palaces and major administrative buildings, like the Sin-kashid palace at Uruk, are also found toward the edges of the cities. Here, although it is possible that if these were new constructions, this was the only piece of empty land available, it seems more likely that their position reflects a belief that put the residential sector at the physical heart of the city. It was, after all, that segment of the city which contributed to the assembly, a shadowy institution - because largely unrecorded in the texts - whose importance we should not underestimate.
The broad surveys also allow a test of the impression provided by excavated house areas that these were not segregated by wealth and power but rather reflected different kinship or occupational groups. Objects that can be associated with wealth and power, like the Mesopotamian cylinder seals, which were badges of office, and the key imported items, copper and bronze, are found in all parts of the city and not concentrated in only a few areas. Moreover, the large amount of copper and bronze recovered from the surface of Mashkan-shapir suggests that all citizens had access to metal for tools, jewelry, and weapons. A total of more than 6 kilograms or about 13 pounds of copper alloy was recovered from the surface of the site, compared with only 35 chipped stone tools. Since there is evidence that copper alloys were recycled when broken - something that cannot be done with stone tools - it is clear that differences in wealth were not so extreme as to be reflected in the materials used for practical necessities.
Another feature of the survey data is the light shed on the activity of artisans, who are poorly documented in the written record. Texts suggest that most artisans were private, although they could be contracted by the large institutions, but we have had little archaeological evidence for their activities.
The first pattern identifiable in all intrasite survey data is the concentration of smokestack industries, especially ceramic production. Mashkan-shapir, Abu Salabikh, Larsa, and el-Hiba all have areas where pottery production, and perhaps other pyrotechnic activities, were concentrated, in the case of Mashkan-shapir at least, in the downwind part of the site. But perhaps the most intriguing aspect of the Mashkan-shapir survey is the distribution of small concentrations of copper fragments and copper slag, almost certainly indicators of the presence of small smithies. Although one or two were found elsewhere, these were primarily located along the main east-west street that ran across the center of the site to the large eastern gate. These data, together with the tendency recorded in the texts for artisans in different crafts to be neighbors, might suggest that Mesopotamian cities had an ancient equivalent of a ‘‘Main Street’’ with only the copper workshops leaving identifiable surface indications.
The last question that can be addressed by the survey data is the identification of places for the exchange of goods. Written sources suggest the presence of squares close to city gates as the primary places of trade and exchange (Oppenheim 1969a). We also know that groups of foreign merchants, organized into a guild-like structure, lived in Mesopotamian cities and were associated with the karum, or city quay. The textual references to ‘‘the city and the karum' have hinted that the city quay was physically separate from the city, but we should also consider the possibility that it was the social separation between citizens and foreigners which is reflected here.
A number of city gates have been identified at both Mashkan-shapir and Larsa, and perhaps the absence of dense settlement at Mashkan-shapir in the vicinity of the eastern end of the main street may indicate the locus of one of the squares mentioned in the texts. But at both Mashkan-shapir and Ur there are also intramural harbors associated with the canal system, and the aerial photographs of Larsa and Uruk suggest that these cities also had such features (Huot, Rougeulle, and Suire 1989: 22; Van Ess, personal communication). It seems to me likely that these harbors must have played some role in the process of trade and exchange.