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 · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Locate the 'Heritage Trees' dataset on Portland's ArcGIS Open Data hub (gis-pdx.opendata.arcgis.com/datasets/heritage-trees)
  2. 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
  3. Alternatively use the bulk CSV/GeoJSON/Shapefile download links exposed on the same dataset page
  4. Parse trunk-location point geometry plus attributes describing the basis for heritage designation (age, size, type, historical association, or horticultural value)
  5. Treat the list as authoritative for Portland's City Forester-maintained heritage register, updated annually per the ordinance

Known gotchas

Related routes

Query San Jose, CA's Heritage Tree register (protected trees of historic, size, or species significance) via the city's ArcGIS GeoService REST endpoint
data.sanjoseca.gov · 5 steps · unrated
Query the City of Philadelphia's annually-updated street/park tree inventory via its ArcGIS FeatureServer
opendataphilly.org · 5 steps · unrated
Determine whether a tree is a protected or heritage species in a given city
municode.com · 5 steps · unrated

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