Title from HTML index page (viewed on July 5, 2007).
Mode of access: Internet from the USGS web site. Address as of 11/26/07: http://pubs.usgs.gov/of/2007/1158/; current access via PURL.
System requirements: PC with Internet access; the database is presented in a variety of formats: ArcReader or ArcInfo software and ability to handle ASCII, .pdf, .xls (Excel), GML and JPEG formats.