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Wildfire perimeter

Grizzly Creek

Burned 32,432 acres (131 km², 50.7 mi²) in CO during 2020.

IRWIN {BC150C8C-D9C8-4… USFS CO fire history 2020 fires
Acres burned
32,432
131 km²
Year
2020
FIRE_YEAR field
State
CO
POOState region
Reporting agency
USFS
NIFC source
01 Perimeter shape

The fire's footprint

Simplified polygon (≤0.001° tolerance). 23 rings. Centroid 39.605°, -107.193°.

NW: 39.669°N, 107.290°W SE: 39.540°N, 107.097°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.