You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Vicinity of Cerro Zempoaltepetl. Southwest slopes of mountain near Tlahuitoltepec, about eight kilometers southwest of summit Remove constraint Place: Vicinity of Cerro Zempoaltepetl. Southwest slopes of mountain near Tlahuitoltepec, about eight kilometers southwest of summit