Geologic quadrangle maps of the United States.

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Format:	Map
Language:	English
Published:	Reston, Va. : U.S. Geological Survey, [between 1900 and 1999]
Subjects:	Geology > United States > Maps. United States > Geology > Maps.

Description
Item Description:	Geologic column in margin. Cartographic material.
Physical Description:	color maps ; 59 x 46 cm. or smaller on sheet 80 x 87 cm. or smaller folded in envelope 31 x 25 cm.
Bibliography:	Bibliographical references cited.