City of Portland, OregonPoints representing trunk locations of Heritage Trees of Portland. -- Additional Information: Category: Environmental Purpose: The Heritage Tree ordinance calls for the City Forester to annually prepare a list of trees that - because of their age, size, type, historical association or horticultural value - are of special importance to the City Update Frequency: Annually -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52455ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/db48b717d0174906b95f028c83c09dd0_26engPortlandMaps Open DataPublicHeritage Trees [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2025-04-29