3 unnumbered pages : color illustrations, 1 color map ; 28 cm
OCLC
ocm51275855
Caption title.
Shipping list no.: 2003-0022-P.
"June 2002."
Also available via Internet at the USGS web site. Address as of 10/29/03: http://erg.usgs.gov/isb/pubs/factsheets/fs06202.pdf; current access available via PURL.