Ohio-Pennsylvania conneaut Quadrangle Surveyed in 1904 in Cooperation with the State of Ohio , Scae [1:62500 Scale [5:20] Contour Interval 20 Feet - Washington US Geological Survey 1906 - 1 Map Coloured 520 X 42 cm
Datum is mean sea level Approximate mean declination 1904
Topographic Map
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