[3] It was named after its original destination: the Gold Fields of Mount Alexander, now known as Castlemaine.

It changes name to Mount Alexander Road and continues heading south to Moonee Ponds as a wide dual-carriageway with a plantation separating northbound and southbound traffic, until it reaches the intersection with Pascoe Vale and Ascot Vale Roads at Moonee Ponds Junction.

It continues south as a four-lane single-carriageway road, sharing tram tracks along the roadway through Ascot Vale, then forming the boundary between Flemington and Travancore, before eventually crossing Moonee Ponds Creek underneath the CityLink sound-tube and arriving at the intersection with the CityLink ramps, Boundary and Flemington Roads in Parkville.

Bulla Road was allocated Metro Route 37, extended north from Lincoln Road to Tullamarine Freeway, when the Tullamarine Freeway extension opened in 1970, replacing former Metropolitan Route 40.

Mount Alexander Road is entirely contained within the City of Moonee Valley local government area.