Title varies: 1920, State road map of Minnesota; 1923-1936, Map of trunk highway system State of Minnesota; 1937-1939, Map of Minnesota trunk highway system; 1942-1947, Official road map of Minnesota showing the State highway system and main secondary roads; 1948-1950, Minnesota official highway map: 1951-1957, Official road map of Minnesota showing the State highway system and main secondary roads; 1958-1961, Official road map showing the State highway system and main secondary roads of Minnesota; 1962-1967, Official road map of Minnesota. Published by Dept. of Highways 1925-1964; published by Dept. of Highways, Planning and Programming Division 1965-1970; published by Dept. of Highways, Transportation and Transit Planning and Programming Division 1971-1975; published by Dept. of Highways, Transportation Planning and Programming Division 1976; published by Dept. of Transportation 1977-. Some sheets include distance chart, local route maps, index, and charts. Col. illus., distance chart, local route maps, index, and text on verso of some sheets. Minnesota Transportation Maps