Water-table, surface-drainage, and engineering soils map of the Hickman area, Delaware [cartographic material] / by John K. Adams and Durward H. Boggess ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Delaware Geological Survey and the Delaware State Highway Department
Scale 1:24,000 (W 75°42ʹ30ʺ--W 75°37ʹ30ʺ/N 38°52ʹ30ʺ--N 38°45ʹ00ʺ).
Note
Relief shown by contours and spot heights. Includes location map, graph, tables, and text.
Bibliography Note
Includes bibliographical references.
Action Note
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