 At the University of Chicago (1966-84), he taught advanced courses in physical geography, applied geomorphology, and environmental archaeology, as well as graduate seminars in settlement archaeology and geography.At the ETH-Zurich (1981-82), he introduced a new program in human geography, which continued to be implemented after his departure.At the University of Texas (since 1984), he offered graduate courses in geoarchaeology and environmental history; cultural ecology; historical geography; and landscape, society, and meaning.