The fonds consists of minutes of annual meetings of the Lethbridge Northern Irrigation District, correspondence, subject files, annual reports, legal opinions, financial records, district electoral records, work reports, and cartographic records. Includes correspondence and plans pertaining to the construction and maintenance of canals, flumes, dams, reservoirs and other irrigation works; correspondence regarding the sugar beet industry in the area; correspondence and reports regarding the creation and maintenance of Park Lake Provincial Park; ledger and annual reports pertaining to colonization efforts; lists, entry forms, sale records of livestock raised by the District; . Includes correspondence of the Superintendents of the District, ca. 1910-1964, pertaining to all matters of administration within the District. Includes maps of local topography, plans of the irrigation works, and plans of District buildings, (1894-1960).