This report is preliminary and has not been reviewed for conformity with
U.S. Geological Survey editorial standards.
Any use of trade, product, or firm names in this publication
is for descriptive purposes only and does not imply endorsement by
the U.S. Government or State governments.
Produced in the Eastern Region, Reston, Virginia,
by Kathie Fraser.
U.S.Department of the Interior, U.S. Geological Survey
<https://pubs.usgs.gov/openfile/of00-325/contents.html>
Maintained by Dave Soller
Last updated 11.09.00