Duel gauge rail on the riverfronts?

[Magnatomicflux]

Railfans...can you answer this?

I found this picture ages ago online and always wondered if there was a difference in the gauge between Canada and the States in the late 19th C. Or at least Ont. and Mich.

This is what would have been the GTR yard in Windsor....say 1890? Notice the third rail.




Who did they change cars with in Detroit with a different gauge? Was there a facility over there/over here to change the wheel sets? And which side had the larger of the two gauges? When did it end? 1900?


And just a side note......the "tall" building on the left is Windsor's Town Hall, which was right here:

http://maps.google.ca/maps?hl=en&q=w...137.94,,0,5.46

Just to the west of the Casino. There is a plaque you can see on the lawn of the apartment building marking the site.


Thanks!