Geology of the Portal quadrangle, North Dakota /

Bibliographic Details
Main Author:	Townsend, Roland C.
Format:	Government Document Map
Language:	English
Published:	Washington, D.C. : U.S. Geological Survey, 1954.
Series:	Geologic quadrangle map ; GQ-47.
Subjects:	Geology > North Dakota > Burke County > Maps.

Description
Item Description:	"Datum is mean sea level." Cartographic material.
Physical Description:	1 map : color ; 44 x 29 cm. on sheet 76 x 128 cm., folded to 76 x 64 cm.
Bibliography:	Includes text and bibliographical references.