Issued by the Geological Survey in collaboration with: Canada Water Resources Division, -Feb. 1956; Water Resources Branch, Mar. 1956-May 1967; Inland Waters Branch, June 1967-Dec. 1968; Canada Inland Waters Branch, Jan. 1968-Aug. 1972; Canada Water Resources Branch, Sept. 1972-June 1982.
Note
Description based on: Mar. 1955; title from caption.