Mode of access: Internet from the USGS web site. Address as of 8/29/07: http://pubs.usgs.gov/sim/2007/2982/; current access via PURL. System requirements: PC with Internet access, Adobe Acrobat Reader installed to handle .pdf (Portable Document Format) files, and Zip decompression software for access to data files.
Title from HTML index page (viewed on Aug. 29, 2007). Includes location map.