Cover Image

Geologic map of the Black Hawk quadrangle, Gilpin, Jefferson, and Clear Creek counties, Colorado /

Bibliographic Details
Main Author: Taylor, Richard B. (Richard Bartlett)
Corporate Author: Geological Survey (U.S.)
Format: Government Document Map
Language:English
Published: Reston, Va. : The Survey, 1976.
Series:Geologic quadrangle map ; GQ-1248.
Subjects:
Geology > Colorado > Gilpin County > Maps.
Geology > Colorado > Jefferson County > Maps.
Geology > Colorado > Clear Creek County > Maps.
Description
Item Description:Relief shown by contours and spot heights.
Contour interval 40 feet.
Includes col. cross section, location map, "Geologic index map showing Precambrian rock types and structures," and text.
Marginal map: Geologic index map showing Precambrian rock types and structures.
Cartographic material.
Physical Description:1 map : color ; 58 x 45 cm., on sheet 78 x 100 cm., folded in envelope 30 x 24 cm.
Bibliography:Includes bibliographical references.