Although they contain a wealth of geographical information, land registers have not been fully exploited with the aim of reconstructing the Nile Valley landscape. However, compared to other written or pictorial sources, they have several advantages. 1) The geographical information they contain is based on onsite observation and therefore directly reflects the reality of the time at least from the point of view of the land assessors who surveyed the fields.1 2) Being administrative documents, we may expect them to be free from artistic, religious, political or ideological interferences which often make the interpretation of other ancient sources difficult. 3) For the Pharaonic Period we have a relatively high number of documents dating from the eleventh to the tenth century B.C. (Twentieth Dynasty to Twenty-second Dynasty) which concern Middle Egypt.2Unfortunately, several of these documents are very lacunous, devoid of useful geographical information, or still incompletely published so that, in the final analysis, only three texts can be fully exploited, namely P. Wilbour, the Louvre AF 6345-Griffith fragments and P. Reinhardt.