One of Â鶹¹ÙÍø's main arteries, this street runs between Barrie Street and Portsmouth Village and connects the main campus with west campus. Before the 1920s, Â鶹¹ÙÍø's entire campus lay south of Union Street.
Today, Â鶹¹ÙÍø's buildings line the north side of Union between Barrie and Frontenac streets. The intersection of Union and University Avenue is the busiest point on campus.