Corvallis
https://en.wikipedia.org/wiki/Peavy_Arboretum
Dallas
http://www.delberthunterarboretum.org/
Dunthorpe
https://www.elkrockgarden.org/
Echo
http://www.echo-oregon.com/arboretum.html
Eugene
http://mountpisgaharboretum.org/
Jacksonville
https://en.wikipedia.org/wiki/Beekman_Native_Plant_Arboretum
Medford
https://everipedia.org/wiki/lang_en/Claire_Hanley_Arboretum/
Portland
https://www.hoytarboretum.org/
https://www.portlandoregon.gov/parks/finder/index.cfm?action=viewpark&propertyid=1113
http://rhodies.org/xstl/xstl_home.htm
Rouge River
https://en.wikipedia.org/wiki/Palmerton_Arboretum
Salem
https://en.wikipedia.org/wiki/Martha_Springer_Botanical_Garden
Silverton