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

Index Terms--Genre/Form:
Topographic Map

Dewey Class. No.: 912.771