You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place El Cerro de Yuhualtepetl. Efido de Ixtacapa Chico km. southwest of Campo Experimental de Hule, El Palmar, Zongolica. Remove constraint Place: El Cerro de Yuhualtepetl. Efido de Ixtacapa Chico km. southwest of Campo Experimental de Hule, El Palmar, Zongolica.