Raised on an artificial terrace leveled off the south face of Mount Franklin, the school consists of a pair of wings in an L-shaped plan. A Corinthian columned portico of six colossal columns marks the interior angle where the wings converge. The portico overlooks a horseshoe-shaped amphitheater on the downhill slope and commands views across the Rio Grande valley. Friday night football in Texas has never had a more noble setting. The school is three stories high, faced with tawny brick and matching terra-cotta, and set on a raised basement. A two-story order of Tuscan pilasters with deeply recessed windows and spandrels amplifies the Baroque effect. Above a full entablature, a tall attic has its own cornice and balustrade. The result is robust without being ponderous. Inside, classrooms are zoned in the wings, and a wedge-shaped, two-story auditorium is set in the corner of the ell behind the portico, along with a library and the school’s administrative offices. The gymnasium, with its heavy precast concrete walls and steel roof truss, was added in the 1970s.