The Federation Trail is a 23-kilometre-long (14 mi) shared use path for cyclists and pedestrians, which mainly follows the heritage-listed Main Outfall Sewer through the western suburbs of Melbourne, Victoria, Australia. There are three bridges spanning across major arterial roads, as well as button-activated traffic light crossings at most other major road-trail intersections. The trail was officially opened on 22 October 2006. An interactive map of the trail as well as others in the Melbourne area is available from the 'External Links' section in this article.