Blueline. 'State roads revised to January 1, 1949.' '1937.' 'Data obtained from State-wide Highway Planning Survey.' Includes location map and chart of 'Culture in unincorporated places.' Supplementary sheet includes maps of a portion of Calumet Township and the Cedar Lake area. '45, 45A (supplementary sheet).' Scale 1:130,000. Not '1 inch =1 mile'.; Polyconic projection Prepared by the State Highway Commission of Indiana in cooperation with the U.S. Department of Agriculture, Bureau Public Roads.