Geologic map of the Niwot quadrangle, Boulder County, Colorado /

Bibliographic Details
Main Author:	Trimble, Donald E.
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey, 1975.
Series:	Geologic quadrangle map ; GQ-1229.
Subjects:	Geology > Colorado > Boulder County > Maps.

Description
Item Description:	Relief shown by contours and spot heights. "Geology mapped in 1971-72. Faunal zones from Scott and Cobban (1965)." Includes correlation and description of map units and quadrangle location diagram; latter diagram also on envelope. "Datum is mean sea level." Cartographic material.
Physical Description:	1 map : color ; 58 x 45 cm., folded in envelope 30 x 24 cm.
Bibliography:	Includes bibliographical references.