by Gregg K. Schalk, Robert R. Holmes, Jr., and Gary P. Johnson
The text and graphics are presented here in pdf format (print quality):
The full report is 3.45 MB.
If you have Adobe Acrobat Reader installed on your computer, you may view and/or print the PDF version of this report. If you do not have Acrobat Reader, you may download it here.
Users with visual disabilities can visit this site for conversion tools and information to help make PDF files accessible.
|AccessibilityFOIAPrivacyPolicies and Notices|
|U.S. Department of the Interior, U.S. Geological Survey
Page Contact Information: Contact USGS
Last modified: Wednesday, November 23 2016, 12:28:44 PM