True view
Fire view
Fire view (right): infrared (SWIR), sees through smoke and brings out the heat.
🟢 green = vegetation
🟤 brown = already burned
🟠 orange = fire right now
Drag to compare: normal photo on the left, heat brought out on the right.
Green: vegetationBrown: already burnedOrange: fire right nowSentinel-2 · Copernicus
Red dots: heat detected by satellite in the last 48h. NASA FIRMS
Key facts
Source: NIFCThe story so far
Summary written on Sep 8, while the fire was still active. It has since ended — the figures above are current.
Burning across private land in Stanley County, South Dakota, the active Four Corners Fire has reached 300 acres since igniting on September 8, 2026. The blaze unfolds within a regional fire season that typically spans from June to October.
This incident develops against a broader backdrop across the country, where 3,188,211 hectares have burned so far in 2026, tracking 42% below the two-decade average.
In context
This wildfire burned in South Dakota for less than a day. In total it burned about 300 acres — around 1.2 km².
In the Northern Hemisphere, wildfire activity usually peaks during the warm, dry months — roughly May through October.
The bigger picture in United States
Across United States, roughly 3,455,585 hectares have burned so far in 2026 — 37% below the two-decade average. Data from Copernicus GWIS.
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