UHS Mariachi Extravaganza Share Date 11/16/2017 7:00 pm - 9:00 pm Location John H. Harrell Auditorium Categories Events Theatres UHS Mariachi Groups with headliners Mariachi Las Altenas. Admission $10.00 Map Loading Map.... John H. Harrell Auditorium1 Coyote Trail - Uvalde 29.2224775 -99.78189859999998