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Little Mountain Fire (UT)

Active · 45% contained · 506 acres · started 2026-08-20 · updated 2026-08-21

Little Mountain Fire (UT) — NASA satellite

Satellite image: NASA MODIS (infrared — active fire in orange/red, from yesterday).

Heat detections: NASA FIRMS (last 48h).

Quick facts

Location
7 Miles S from Tremonton, UT
Cause
Human
Personnel
23
Complexity
Type 4 Incident
Fuel
Short Grass (1 foot)
Behavior
Active, Wind Driven Runs
Jurisdiction
Private land

Triggered by human activity on August 20, 2026, the active Little Mountain Fire is currently burning across 506 acres of private land in Box Elder County, Utah. Despite having burned for multiple days, satellite monitoring shows a low level of activity with only a single heat detection over the past 48 hours, suggesting the perimeter is largely holding as firefighters manage the incident under a Type 4 command.

This incident unfolds during the region's typical fire season, which spans from June to October. Nationally, the broader wildfire landscape remains below historical norms, with 2,955,961 hectares burned so far in 2026, marking a 46 percent decrease compared to the two-decade average.

In context

This wildfire has been burning in Utah for 1 day. So far it has affected roughly 506 acres — about 2.0 km². Crews have contained 45% of the perimeter, but most of the fire line is still open.

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 2,955,961 hectares have burned so far in 2026 — 46% below the two-decade average. Data from Copernicus GWIS.

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