Old Main, University of Arizona U.S. National Register of Historic Places Show map of Arizona Show map of the US Location University of Arizona campus, Tucson, Arizona Coordinates 32°13′55″N 110°57′10″W﻿ / ﻿32.23194°N 110.95278°W﻿ / 32.23194; -110.95278Coordinates: 32°13′55″N 110°57′10″W﻿ / ﻿32.23194°N 110.95278°W﻿ / 32.23194; -110.95278 Area 0.7 acres (0.28 ha) Built 1887-1891 Architect Creighton,James M.; Sullivan,M.J. Architectural style Eclectic NRHP Reference # 72000199[1] Added to NRHP April 13, 1972