Description
Item Description:Relief shown by contours, shading and spot heights.
Geology mapped in 1966-67, 1969-70, by Peter J. Barrett [and others].
"Base from U.S. Geological Survey, 1965."
Includes index to adjoining sheets, 1 isogonic line diagram, 1 color cross section, and explanation of map units.
Physical Description:1 online resource (1 map) : color.
Bibliography:Includes bibliographical references.