Query current or historical wildfire incident perimeters from NIFC's WFIGS ArcGIS REST services
domain: data-nifc.opendata.arcgis.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Find the dataset 'about' page on data-nifc.opendata.arcgis.com (e.g., WFIGS Current Interagency Fire Perimeters) to get the FeatureServer URL and layer id
Call GET https://services3.arcgis.com/T4QMspbfLg3qTGWY/arcgis/rest/services/WFIGS_Interagency_Perimeters_Current/FeatureServer/0/query?where=1%3D1&outFields=*&f=geojson
Add geometry/geometryType/spatialRel params to filter results to your area of interest
Paginate using resultOffset and resultRecordCount since the service caps at 2000 records per call
For historical (not just current) fires, switch to the InterAgencyFirePerimeterHistory layer instead
Known gotchas
The 2000-record-per-call cap forces pagination for any nationwide pull
The 'Current' layer excludes contained/out fires, so historical analysis needs the separate history layer
Field names use verbose Esri prefixes (poly_*, attr_*) that differ between datasets, and date fields default to epoch-ms unless f=geojson is used
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