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Wildfire perimeter

Pioneer

Burned 188,404 acres (762 km², 294.4 mi²) in ID during 2016.

IRWIN {646895B1-D65E-4… USFS ID fire history 2016 fires
Acres burned
188,404
762 km²
Year
2016
FIRE_YEAR field
State
ID
POOState region
Reporting agency
USFS
NIFC source
01 Perimeter shape

The fire's footprint

Simplified polygon (≤0.001° tolerance). 147 rings. Centroid 44.139°, -115.585°.

NW: 44.373°N, 115.821°W SE: 43.905°N, 115.349°W

About this perimeter

Sourced from the NIFC InterAgency Fire Perimeter History ArcGIS service. Polygon geometry has been simplified to ≤0.001° tolerance for storage; original full-fidelity perimeters are at fire.nifc.gov. We track all 75,044 documented historical perimeters; this detail view renders the top 1,000 by acreage. The shape above is rendered fully server-side with no JavaScript or external mapping library — it preserves the polygon's shape but not its precise geographic placement on a basemap.