1920. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1920.
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1921. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1921.
1922. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1922.
1923. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in YEAR.
1924. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1924.
1925. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1925.
1926. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1926.
1927. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1927.
1928. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1928.
1930. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1930.
1931. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1931.
1932. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1932.
1933. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1933.
1934. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1934.
1935. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1935.
1936. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1936.
1937. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1937.
1938. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1938.
1939. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1939.
1940. Wisconsin Department of Transportation. This scanned map represents the official Department of Transportation state highway map for Wisconsin in 1940.