Description
Item Description:"February 2007."--P. [4] of cover.
Electronic resource.
Physical Description:41 pages : maps ; 28 cm.
Format:Also available via Internet from the FS web site. Address as of 2/16/2007: http://www.fs.fed.us/pnw/pubs/pnw%5Frp570.pdf; current access is available via PURL.
Bibliography:Includes bibliographical references (pages 37-39).