Low-angle aerial view. On earlier printings: *GPO:2004--304-337/00035; on later printings: *GPO:2004--304-337/00207. Title from panel. Oriented with north to the right. LC has 2 copies. Available also through the Library of Congress Web site as a raster image. Includes text and ill. (some col.). Text and col. ill. on verso. DCP
System requirements: Computer system with CD-ROM drive; Adobe Acrobat Reader (included on disk). Title from title screen. "March 2004"--Disc label. Includes bibliographical references and index. Also available via Internet from the BLM web site. Address as of 5/25/04: http://www.id.blm.gov/shoshone/craters/index.htm; current access is available via PURL. 1 CD-ROM : col. ; 4 3/4 in.