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Wildfire perimeter

631010

Burned 56,229 acres (228 km², 87.9 mi²) in AK during 1986.

IRWIN unkn-50000-979… AFS AK fire history 1986 fires
Acres burned
56,229
228 km²
Year
1986
FIRE_YEAR field
State
AK
POOState region
Reporting agency
AFS
NIFC source
01 Perimeter shape

The fire's footprint

Simplified polygon (≤0.001° tolerance). 1 ring. Centroid 63.657°, -152.363°.

NW: 63.745°N, 152.567°W SE: 63.570°N, 152.159°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.