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Wildfire perimeter

RIVERSIDE

Burned 138,151 acres (559 km², 215.9 mi²) in OR during 2020.

IRWIN {1AA854A7-3969-4… USFS OR fire history 2020 fires
Acres burned
138,151
559 km²
Year
2020
FIRE_YEAR field
State
OR
POOState region
Reporting agency
USFS
NIFC source
01 Perimeter shape

The fire's footprint

Simplified polygon (≤0.001° tolerance). 36 rings. Centroid 45.140°, -122.224°.

NW: 45.281°N, 122.458°W SE: 44.999°N, 121.991°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.