Home› Wildfires› 2018› Grass Valley
Wildfire perimeter

Grass Valley

Burned 76,817 acres (311 km², 120.0 mi²) in WA during 2018.

IRWIN unkn-80000-915… BLM WA fire history 2018 fires
Acres burned
76,817
311 km²
Year
2018
FIRE_YEAR field
State
WA
POOState region
Reporting agency
BLM
NIFC source
01 Perimeter shape

The fire's footprint

Simplified polygon (≤0.001° tolerance). 2 rings. Centroid 47.939°, -119.168°.

NW: 48.060°N, 119.347°W SE: 47.818°N, 118.989°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.