Today's University Union is an amalgamation of several previous buildings. In 1961, Arizona State College at Flagstaff constructed Central Dining to serve its southernmost dormitories, today's Gillenwater, Raymond, and McDonald Halls. This structure today houses the residential dining area called the Hot Spot and is the Union's eastern entrance. ASCF also built the North Activity Center in 1965. This Quonset hut-shaped gymnasium housed the Department of Physical Education and Recreation and provided indoor track plus tennis, volleyball, and basketball courts. Student Services, opened in 1987, is the Union's western face, housing the Office of Student Life, affiliated offices, and second floor conference rooms. The Union also provides free tutoring at the North Student Learning Center and additional retail dining options in the Union Expansion.