Physical and chemical characteristics of Knowles, Forgotten, and Moqui Canyons, and effects of recreational use on water quality, Lake Powell, Arizona and Utah / by R.J. Hart ... [et al.] ; prepared in cooperation with the Glen Canyon National Recreation Area.

Reston, Va. : U.S. Geological Survey, 2005.

viii, 43 p. : col. ill., col. maps ; 28 cm. + 1 CD-ROM (4 3/4 in.).

Also available via Internet from the USGS web site. Address as of 3/30/05: http://water.usgs.gov/pubs/sir/2004/5120/; current access is available via PURL.

English

March 31, 2005

System requirements: Computer system with CD-ROM drive; Adobe Acrobat Reader 4.0 or greater.

Includes bibliographical references (p. 40-43).