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To the author's knowledge, relict iceberg furrows on the floor of former glacial lakes in Canada have not yet been reported. Many examples of recent and relict iceberg features on sea floors are known in the Arctic Ocean (Kovacs 1972, Pelletier and Shearer 1972, Moign 1973, Reimnitz and Barnes 1974, Shearer and Blasco 1975), and in the North Atlantic Ocean (Belderson et al 1973, Belderson and Wilson 1973, Harris 1974, Harris and Jollymore 1974, King 1976, Linden et al 1976). In addition Berkson and Clay (1973) have reported iceberg furrows on the floor of Lake Superior, and Clayton et al (1965) have interpreted the intersecting minor lineations on Lake Agassiz plain as grooves made by drifting ice floes. Examples of modern grooving by driftice in lake bottom sediments are given by Koshechkin (1958) for the north Caspian Sea, by Weber (1958) for the Great Slave Lake, and by Mollard (1973) for the Great Slave Lake, and lakes Manitoba and Montreal (Saskatchewan). Ice-made grooves in the tidal flats of the Lower St. Lawrence Estuary have been fully described by Dionne (1968, 1969, 1971).

Relict Iceberg Furrows on the Floor of Glacial Lake Ojibwa, Quebec and Ontario