Description
Item Description:Relief shown by spot heights.
"The Dorchester County Geologic Map was prepared by the U.S. Geological Survey as an extension of a Federal study of the Delmarva Peninsula ... U.S.G.S. Professional Papers 1067 A through D."
Maryland state grid.
Includes text, "Index to quadrangles," 3 cross-sections, location map, and metric conversion scale.
Cartographic material.
Physical Description:1 map : color ; 115 x 99 cm., on sheet 137 x 106 cm.
Bibliography:Includes bibliography.