R&N U33B's

Where did the R&N U33B's go?

The U-boats were gone by the late 1990s, but I think a few are still around. I can not locate my Railpace Magazine that has a main article about the RBMN. I think the U33Bs were rarest of the Reading & Northern U-Boats.
http://www.railpictures.net/viewphoto.php?id=8028
http://www.railpictures.net/viewphoto.php?id=8131
http://www.railpictures.net/viewphoto.php?id=8132
http://www.railpictures.net/viewphoto.php?id=8146

I heard the 3300 made it up to Canada for some lease work to the Ottawa Central 1999-2000 area...after that I can't find anything else.