Forty-three years later these words still ring true, but are too seldom followed (Fedick 1996). For several years, we have been engaged in a multidisciplinary programme of research in northwestern Belize and neighbouring areas of Guatemala, eliciting a comprehensive, integrated picture of changing ancient Maya landscapes (Scarborough & Dunning 1996; Valdez et al. 1997). Our goals include a reconstructive correlation of environmental and cultural history, including the relationship between changes in water and land management and political economic organization. This work is still in progress and our understanding is far from complete (Dunning & Scarborough 1997).