Thickness of overburden map, Howard County, Maryland /

Bibliographic Details
Main Author: Roen, John B.
Other Authors: Froelich, A. J. (Albert Joseph), 1929-
Format: Government Document Map
Language:English
Published: Reston, Va. : U.S. Geological Survey, 1978.
Series:Miscellaneous field studies ; map MF-772-B.
Subjects:
Description
Item Description:Coordinates: W 77⁰15ʹ--W 76⁰37ʹ30ʺ/N 39⁰24ʹ--N 37⁰30ʹ.
Mapped by J.B. Roen, 1976.
Cartographic material.
Physical Description:1 map ; 54 x 88 cm. on sheet 68 x 94 cm. folded in envelope 25 x 31 cm.
Bibliography:Includes bibliographical references.