You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place San Antonio (Luis Marío Rodríguez); 11 mi NE of Sabinas Hidalgo, 5 mi SW of Vallecillos Remove constraint Place: San Antonio (Luis Marío Rodríguez); 11 mi NE of Sabinas Hidalgo, 5 mi SW of Vallecillos