There are other communities, government agencies, and organizations that provide good information regarding trees and tree care. Take some time to "branch out" and investigate these tree care resources:

Printed publications available from the Parks Department

Web sites of non-profit and professional organizations

UI Extension Forestry: http://www.cnr.uidaho.edu/extforest/

International Society of Arboriculture http://www.isa-arbor.com  and Pacific Northwest Chapter ISA http://www.pnwisa.org

National Arbor Day Foundation: http://www.arborday.org

American Forests: http://www.amfor.org/

PNW Conifer Identification Home Page: http://www.orst.edu/trees/index.html

Idaho Forest Products Commission: www.idahoforests.org

Tree Identification Key:  http://www.fw.vt.edu/dendro/dendrology/idit.htm

Community Canopy:  http://www.communitycanopy.com