Ohio-Pennsylvania, Columbiana quadrangle [cartographic material] / United States Department of the Interior, Geological Survey ; Frank Sutton, Geographer in charge
Scale 1:62,500 ; Polyconic projection (W 80°45ʹ--W 80°30ʹ/N 41°00ʹ--N 40°45ʹ).
Note:
Relief shown by contours and spot heights. "1907." 1958 printing. "Surveyed in 1903-1906-1907." "Topography by J.M. Whitman and E.B. Clark." "Control by J.R. Ellis and D.C. Harrison."