Rockwell, Cleveland, 1837-1907. Relief shown by hachures, form lines, and spot heights. Depths shown by soundings and isolines. "The triangulation, topography, and hydrography wer... The Survey.
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triangulation, topography and hydrography by J. Kincheloe. Relief shown by hachures. Depths shown by soundings. "The soundings on the bar and in th... The Survey.