06/07/2026
The historic diamond
Credit Valley Railway- Canadian Pacific Railway
Belt Line- Toronto Carrying Place
The junction may have had their famous diamond, a track configuration shaped like a diamond that allows two or more rail lines to cross each other at the same grade. Four railways used the Junction Diamond, the Grand Trunk Railway-Canadian National Railway; the Toronto, Grey and Bruce Railway and the Credit Valley Railway- Canadian Pacific Railway, which headed southwest toward St. Thomas.
A more historic diamond was located a few kilometers west of the Junction, east of Scarlett Road at Dundas, (St. Clair was not built at that time). At this location, an Indigenous trail-path known as the Toronto Carrying Place for many years, which began at that lake and went north to the Holland Marsh-River and Lake Simcoe.
The Credit Valley Railway began operation in 1879, from the Parkdale area and absorbed by the C.P.R. in 1884, crossing the Junction diamond, then it headed west, crossing the Toronto Carrying Place portage trail. In 1892-94, the short lived Belt Line, created a diamond at this location, as it headed north from Union Station, passing through the Teiaiagon-Baby Point area, (not far from Jane Street), and then headed east towards Weston Road.
At this location, Dundas and Langmuir-Humbercrest Blvd., the C.P.R. built the second Lambton Station in 1911; the first was west of Scarlett, north of Dundas, built in 1875. The Belt Line also had a station here in 1982-84, located north of Dundas west of Jane. A family lived here until it was demolished in 1955c.
The Belt Line station, it headed east to Weston Rd, and south to the end of Keele Street. This part of Keele was north of St. Clair for about 50 metres, it ended where Weston Road South began, ending at a large railway yard. There was no transfer station, passengers would get off, walk to the Grand Trunk Railway station south of St Clair west of Weston Road (now Old Weston Road) and take the G.T.R. train to Union Station.
The last Junction rail diamond was embedded at the north end of the West Toronto Railpath as a reminder of the area's rail history and that the Railpath is situated on a former rail line itself, the Old Bruce referring to the Toronto-Grey & Bruce Railway, which connected Toronto with the agricultural and timber resources of Grey and Bruce counties in Southern Ontario.