2002 Checklists of Birds, Fish, Mammals, Reptiles and Amphibians for Crater Lake National Park. Acquired online at: http://www.nps.gov/crla/brochures.
_____. and Oregon Fish and Wildlife Department
1997 Crater Lake Threatened and Endangered Animals. Acquired online at: http://www.nps.gov/crla/tesanima.htm.
Warfield, Ronald G., Lee Juillerat, and Larry Smith
1999 Crater Lake, the Story Behind the Scenery. LC 82-82579. ISBN 0-916122-79-4. KC Publications, Inc. 1982.
Wolverine
2002 Wolverine. Acquired online at: http://www.wolverines-wolverines.com/.
Wooley, Robert L.
2001 Sensitive Plant Monitoring Report for 2001 – Fremont National Forest. Acquired online at: http://www.fs.fed.us/r6/fremont/botany/plantmonitor.html.
Ziegler, Robert S.
1978 in Zobel and Ziegler, 2001. http://www.nps.gov/crla/lodgepole/lodgepole.htm.
Zobel, Donald B. and Robert S. Ziegler
2001 Lodgepole Pine at Crater Lake: History and Management of the Forest Structure. Oregon State University. Acquired online at: http://www.nps.gov/crla/lodgepole/lodgepole.htm.
Personal Communication. June – July 2002.
_____. Federal Lands Highway Program. Kerry Cook.
_____. National Park Service Center Staff: Alan Woodrow (Landscape Architect).
_____. U.S. Fish and Wildlife Service. Klamath Falls, OR. Doug Laye
_____. United States Forest Service, Jim Hays.
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