Originally the steamer Vigilant she was launched at Port Huron, Michigan April 23, 1896 at 128 ft. x 24.5 ft. x 12 ft. beam and 372 tons. In 1913 she was renamed Muscallonge and it was while towing the barge Hudson (cargo crude oil) from Montreal to Toronto August 15, 1936 she caught fire while approaching Brockville. Attempts to have a fire pumper come to the rescue failed as the Muscallonge burned then exploded as the fuel tanks caught fire she then collapsed into the river.

The “Muskie” is a boat dive and now sits about 300 ft. off shore and perpendicular to the shore at about 90 to 100 ft. depth with a quick current and a firm clay bottom. It is off the Brockville shore line.

 Dive site description
 Object description
 Lake / river  St. Lawrence River  Official name  Muscallonge
 GPS Coordinates  N44 36.3150
W75 39.1860
 Also known as  Muskie, Vigilant
 Access  Boat  Type  Tug boat
 Description  Shipwreck  Material  Wood and steel
 Min. / max. depth  91-104 ft  Propulsion  Steam
 Visibility  10-15 ft  Cargo  n/a
 Current  n/a  Built by / at  Port Huron, MI
 Level  Advanced  Built / lauch date  1896
 Thermocline  n/a  Sunk / flooded  August 15th, 1936
 Bottom type  n/a  Dimensions  128 ft x 25 ft
 Boat traffic  n/a  Position  n/a
 Hazards  n/a