Venango County, Pennsylvania /

Relief shown by contours and spot heights.Alternate title in right lower margin: Venango Co., Pa. : N4109.5-W7928/28.5 X 33."Map edited 1986."In upper margin: United States, Department of the Interior, Geological Survey; Commonwealth of Pennsylvania, Department of Environmental Resources, Topographic and Geologic Survey.Pennsylvania coordinate and UTM grids.Includes notes, "Index to 1:24 000-scale maps," and location map