Description
Item Description:Relief shown by contours, shading and bathymetric tints.
Title from HTML index page (viewed on May 5, 2008).
Includes interactive index of quadrangles covered.
Electronic resource.
Physical Description:33 electronic maps : HTML, digital, PDF file.
Format:Mode of access: Internet from the USGS web site. Address as of 5/5/09: http://pubs.usgs.gov/of/2007/1422/ ; current access is available via PURL.
System requirements: PC with Internet access and Adobe Acrobat Reader or similar software to read .pdf (Portable Document Format) files.
Bibliography:Includes bibliographical references.