Hesler, R. S.Relief shown by choropleth methods. "Note: Data--railroad elevations, Plan--after Leverett." Detached from: Topography of Indiana--Map / Edward Barrett. In Thirty-seventh annual report of Dept. of Geology and Natural Resources, Indiana. Indianapolis: Wm. B. Burford, 1913. Page 9.Imprint: [Indianapolis] : [Indiana Department of Geology and Natural Resources], [1913]Dimensions: on sheet 73 x 46 cm; Scale: Scale not given.JPEGG4091.C2 1913 .H4engIndiana. Department of Geology and Natural ResourcesPublicTopographic map of IndianaMapsIndiana1913Indiana University