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Wildfire perimeter

BTT SE 47

Burned 66,622 acres (270 km², 104.1 mi²) in AK during 1977.

IRWIN unkn-50000-866… AFS AK fire history 1977 fires
Acres burned
66,622
270 km²
Year
1977
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 66.210°, -151.164°.

NW: 66.303°N, 151.488°W SE: 66.116°N, 150.841°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.