Fig. 7. Change over time in estimated population size in the Zuni region. Population estimates for the Zuni case were not calculated for the region as a whole. Instead, four large full-coverage survey areas were used to illustrate the magnitude of changes occurring through time in specific places. These surveys consist of the Heshotauthla Archaeological Research Project (Kintigh et al. 2004), the Ojo Bonito Archaeology Project (Kintigh 2007), the Fence Lake Coal Mine Survey (Hogan 1985), and the Miller Canyon Archaeological Survey (Kintigh 1980). Sites were placed into temporal categories using the proportions of well-dated ceramic complexes (following Kintigh et al. 2004). Room counts assigned to each temporal interval were converted into population estimates, assuming two people per masonry room. Population estimates were then adjusted to account for the length of each interval, assuming a site-use life of approximately 25 years.