St. Catharine 在加拿大属于那个地区？

是属於Ontario省的Niagara 地区

St. Catharines is the largest city in the Niagara Region and the sixth largest urban area in Ontario, Canada, with 97.11 square kilometres (37.5 sq mi) of land. It lies 51 kilometres (32 mi) south of Toronto across Lake Ontario and is 19 kilometres (12 mi) inland from the international boundary with the United States of America along the Niagara River. It is the northern entrance of the Welland Canal. Residents of St. Catharines are known as St. Catharinites.

蒙特利尔.并不因古老而缺乏现代化色彩，由于多年以来打下的基础，其工业产值现仍居全国第二位。工业地位不容忽视，金融以及工商业也很发达。购物也是参观蒙特利尔时必不可少的项目之一。

I guess you mean St. Catharines, Ontario. There is a Brock University, with lots of Chinese students. St. Catharines is very close to the Niagara Falls, and is about 90 minutes drive from Toronto.

http://maps.google.ca/maps?hl=en&tab=wl