Scale 1:500,000; 1 in. equals approx. 8 miles.Alternate title: Pennsylvania, base map."Lambert conformal conic projection."Relief shown by spot heights.In bottom margin: 1975
Relief shown by contours and spot heights.Alternate title in right lower margin: Erie Co., Pa. : N41...
Relief shown by contours and spot heights.Alternate title in right lower margin: Philadelphia Co., P...
Relief shown by contours and spot heights.Alternate title in right lower margin: Beaver Co., Pa. : N...
Scale 1:1,000,000; 1 in. equals approx. 16 miles.Alternate title: Pennsylvania, base map."Lambert co...
Scale 1:500,000; 1 in. equals approx. 8 miles.Alternate title in lower margin: Pennsylvania, base ma...
Scale 1:50,000.Alternate title in lower right margin: Adams Co., Pa., 1974.At head of title: Commonw...
Scale 1:50,000.Alternate title in right lower margin: Jefferson Co., Pa.At head of title: Commonweal...
Scale 1:50,000.Alternate title in right lower margin: Lackawanna Co., Pa., 1974.At head of title: Co...
Relief shown by contours and spot heights.Alternate title in right lower margin: Lebanon Co., Pa. : ...
Scale 1:50,000.Alternate title in right lower margin: Forest Co., Pa.At head of title: Commonwealth ...
Relief shown by contours and spot heights.Alternate title in right lower margin: Carbon Co., Pa. : N...
Scale 1:50,000.Alternate title in right lower margin: Montour Co., Pa.At head of title: Commonwealth...
Scale 1:50,000.Alternate title in right lower margin: Cumberland Co., Pa.At head of title: Commonwea...
Scale 1:50,000.Alternate title in right lower margin: Sullivan Co., Pa.At head of title: Commonwealt...
Scale 1:500,000; 1 in. equals approx. 8 miles.Title in right lower margin: New Jersey, base map with...
Relief shown by contours and spot heights.Alternate title in right lower margin: Erie Co., Pa. : N41...
Relief shown by contours and spot heights.Alternate title in right lower margin: Philadelphia Co., P...
Relief shown by contours and spot heights.Alternate title in right lower margin: Beaver Co., Pa. : N...
Scale 1:1,000,000; 1 in. equals approx. 16 miles.Alternate title: Pennsylvania, base map."Lambert co...
Scale 1:500,000; 1 in. equals approx. 8 miles.Alternate title in lower margin: Pennsylvania, base ma...
Scale 1:50,000.Alternate title in lower right margin: Adams Co., Pa., 1974.At head of title: Commonw...
Scale 1:50,000.Alternate title in right lower margin: Jefferson Co., Pa.At head of title: Commonweal...
Scale 1:50,000.Alternate title in right lower margin: Lackawanna Co., Pa., 1974.At head of title: Co...
Relief shown by contours and spot heights.Alternate title in right lower margin: Lebanon Co., Pa. : ...
Scale 1:50,000.Alternate title in right lower margin: Forest Co., Pa.At head of title: Commonwealth ...
Relief shown by contours and spot heights.Alternate title in right lower margin: Carbon Co., Pa. : N...
Scale 1:50,000.Alternate title in right lower margin: Montour Co., Pa.At head of title: Commonwealth...
Scale 1:50,000.Alternate title in right lower margin: Cumberland Co., Pa.At head of title: Commonwea...
Scale 1:50,000.Alternate title in right lower margin: Sullivan Co., Pa.At head of title: Commonwealt...
Scale 1:500,000; 1 in. equals approx. 8 miles.Title in right lower margin: New Jersey, base map with...
Relief shown by contours and spot heights.Alternate title in right lower margin: Erie Co., Pa. : N41...
Relief shown by contours and spot heights.Alternate title in right lower margin: Philadelphia Co., P...
Relief shown by contours and spot heights.Alternate title in right lower margin: Beaver Co., Pa. : N...