Brockville, Ont, City, pop 21 375 (2001c), 21 752 (1996c), 21 582 (1991c), 20 880 (1986c), area 20.73 km2, inc 1962, located on the ST LAWRENCE R, 80 km E of Kingston. An important transshipment centre in the past, it remains a divisional point on the CNR and, as "gateway to the THOUSAND ISLANDS," a major tourist centre.