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Hoyt ArboretumThe one and only Hoy Arboretum ![]() ![]() ![]() found ![]() ![]() p ridge ![]() ![]() ![]() ![]() ![]() ![]() hills ![]() Portland, Oregon, USA(United States ![]() America). It ![]() ![]() founded ![]() 1922 y collection ![]() timber industry representatives, ![]() ![]() U.S. Forest Service, ![]() ![]() Portland Parks department, ![]() ![]() enthusiasts.
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