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Wildfire perimeter

Delta

Burned 63,506 acres (257 km², 99.2 mi²) in CA during 2018.

IRWIN {A93E1B54-65CD-4… USFS CA fire history 2018 fires
Acres burned
63,506
257 km²
Year
2018
FIRE_YEAR field
State
CA
POOState region
Reporting agency
USFS
NIFC source
01 Perimeter shape

The fire's footprint

Simplified polygon (≤0.001° tolerance). 4 rings. Centroid 41.006°, -122.462°.

NW: 41.086°N, 122.603°W SE: 40.926°N, 122.320°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.