Shaded Elevation Map of Ohio, Map MG-1, by D. M. Powers, J. F. Laine, and R. R. Pavey, 2003. 40 x 32 inch format, scale 1:500,000 or 1 inch equals about 8 miles, spectral colors. The Shaded Elevaiton Map of Ohio depicts the topographic relief of Ohio's landscape using spectral colors to represent elevation intervals. This digitally derived map shows details of Ohio's topography unlike any map of the past. Bold spectral colors are used to emphasize elevation contrasts.