Caption: After finishing up their duties further up the line, CN GP9's 4520 and 4515 head south on the southwest leg of CN's GECO Spur (or GECO Branch) in Scarborough, coming around the bend at Milne Ave. crossing while enroute back to the Kingston Sub with a lone caboose in tow.

As mentioned in a previous photo, the CN's GECO Branch/Spur was constructed to serve the "Golden Mile" area of Scarborough during the post-war industrial boom, as the area formerly inhabited by a World War 2 munitions plant transitioned to domestic manufacturing, and the surrounding farmer's fields were gobbled up by the urban sprawl of the growing Scarborough suburbs. Part of the line was partially built over the old abandoned Canadian Northern right-of-way (that ran north of CN's ex-GTR Kingston Sub). Industrial decline and gentrification in the 90's/2000's resulted in a lot of the factories being redeveloped into neighbourhoods, commercial plazas and townhouses, the loss of rail customers, and today only a portion of the GECO Spur remains to serve the few remaining rail customers. This portion from the Kingston Sub to near the TTC's Warden Subway Station has been removed and the land sold off.

Mike Mastin photo, Dan Dell'Unto slide collection.