Ant Park Fire, White Sulphur Springs, Montana

True view Fire view

⟷

True view (left): as the eye sees it.
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

Key facts

Source: NIFC

Location15 miles northeast of White Sulphur Springs, MT

What's burningClosed Timber Litter

How it's behavingMinimalSmoldering — Burning without flame, in the ground or in roots. Can flare up days later.Creeping — Moves slowly, hugging the ground.

ComplexityType 4 IncidentOfficial scale from 5 to 1: a Type 1 is the most complex in the country.

JurisdictionUSFS · Federal land

Cost so far$6.4 million

Glossary: what each term means

Minimal

Barely moving. Low, thin smoke.

Smoldering

Burning without flame, in the ground or in roots. Can flare up days later.

Creeping

Moves slowly, hugging the ground.

Moderate

Spreads with low, steady flames.

Active

Spreading evenly and steadily, with visible flame.

Extreme

Fast and unpredictable.

Running

Runs along the ground much faster than a person walks.

Flanking

Grows along the sides, not head-on.

Backing

Moves against the wind or downhill, which makes it slower.

Crowning

Climbs into the treetops and jumps crown to crown. It can't be attacked from the ground.

Short Crown Runs

Climbs into the crowns in bursts and drops back down.

Torching

Whole trees flaring up like torches.

Isolated Torching

Single scattered trees flaring up whole, like torches.

Group Torching

Whole clumps of trees flaring at once.

Spotting

Wind carries embers through the air and starts new fires ahead of the front: that is how a fire jumps a road or a firebreak.

Wind Driven Runs

The wind pushes it in long runs in one direction.

The ones marked ● are the behaviors that make a fire harder to stop. They are not a warning or an instruction: they are the description written by the agency in charge. For decisions, always follow your emergency services.

The story so far

Burning across 400 acres in Meagher County, Montana, the Ant Park Fire was a Type 4 Incident managed by the USFS on federal land, located 15 miles northeast of White Sulphur Springs. Over an 88-day span that began on July 31, 2026, the fire maintained an average daily growth of about 5 acres per day before ultimately ending with 100 percent containment.

Fire behavior late in the incident was characterized as minimal, smoldering, and creeping through closed timber litter. A small crew of 4 personnel responded to suppress the incident, bringing the total cost of the operation to about $6.4 million, specifically 6,364,076 USD.

The broader fire season context shows that 3,450,833 hectares have burned so far in 2026, marking a figure 37 percent below the two-decade average for a typical fire season that stretches from June to October.