"CAUGHNAWAGA, or SAULT ST. LOUIS,. a post village in Laprairie co., situated on the south shore of the St. Lawrence, opposite the village of Lachine. 10 miles from Montreal and 15 miles from Beauharnois. The C. P. R. has a station here half a mile from the village. It is entirely inhabited by the Indians of the Iroquois tribe : has a Roman Catholic church, telegraph and express offices. Pop. about 1700."