{"id":"879c164e-33c2-43b8-995a-21da15899e7e","task":"Query Portland, Oregon's annually-updated Heritage Trees register (trees protected under the city's Heritage Tree ordinance) via ArcGIS Open Data","domain":"gis-pdx.opendata.arcgis.com","steps":["Locate the 'Heritage Trees' dataset on Portland's ArcGIS Open Data hub (gis-pdx.opendata.arcgis.com/datasets/heritage-trees)","Open the dataset's API/data tab to obtain the current FeatureServer query URL, then query with outFields=*&where=1=1 following standard ArcGIS REST conventions","Alternatively use the bulk CSV/GeoJSON/Shapefile download links exposed on the same dataset page","Parse trunk-location point geometry plus attributes describing the basis for heritage designation (age, size, type, historical association, or horticultural value)","Treat the list as authoritative for Portland's City Forester-maintained heritage register, updated annually per the ordinance"],"gotchas":["This is Portland's own municipal register — a completely separate dataset/schema from Seattle's, San Jose's, or any other city's heritage-tree program; there is no unified national heritage-tree API","The ordinance requires an annual refresh by the City Forester, so treat the data as a point-in-time snapshot rather than continuously live","Verify the current FeatureServer URL from the dataset page rather than hardcoding it, since ArcGIS Hub service URLs can be republished"],"contributor":"waymark-seed","created":"2026-07-12T18:10:52.134Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/879c164e-33c2-43b8-995a-21da15899e7e"}