347 In 1994, at the Fourth Biennial Southwest Symposium also held in Tempe, Catherine Cameron organized a session on migration and movement, which was published as a special issue of the Journal of Anthropological Archaeology the following year (Cameron 1995). hat session focused on pushes and pulls, on identifying where migrations occurred, and mostly on the causes rather than the social consequences of migration. Migration was just coming back into the Southwest literature, and it was a watershed session. Since then, migration has become a growth industry—and only a few holdouts are resisting the idea that migration was a way of life for all Southwestern peoples. he new literature on migration builds on Tessie Naranjo’s (1995) interesting contribution to Cameron’s symposium by taking into account archaeologists’ revived interest in tra- ditional histories. his literature also incorporates new theoretical approaches such as ethnogenesis, landscapes of memory, and micro-scale approaches. he papers presented at this symposium are excellent examples of a new synthesis of all these approaches. In the Southwest we are in the unparalleled position of being in a location where we can compare migration consequences through time and across regions. Scott Ortman and Catherine Cameron (this volume) set up a programmatic introduction for the papers in this session by focusing on the social dimensions of migration, which they succinctly summarize in their Table 15.1. his table breaks down or dimensionalizes Barbara J. Mills [20] Themes and Models for Understanding Migration in the Southwest