The Pine Mountain Fire — which ignited on May 7, 2026 when a planned prescribed burn on the Deschutes National Forest escaped its containment lines — is now 85% contained at 2,589 acres, according to Central Oregon Fire Information. The incident marked the first significant wildfire of the 2026 season in Central Oregon.

How a Prescribed Burn Became a Wildfire

Firefighters on the Bend-Fort Rock Ranger District had been conducting a multi-day prescribed burn in the Pine Mountain area beginning May 5. On the afternoon of May 7, fire behavior escalated beyond what crews could manage and the burn was formally declared a wildfire at approximately 4:00 p.m. The fire grew rapidly before crews established control lines, burning through a mix of forest and grassy flats southeast of Bend. An infrared flight conducted earlier in the week led to a slight downward mapping refinement in acreage, with the final size confirmed at 2,589 acres.

Suppression and Mop-Up Under Way

As of May 11-12, firefighters had contained the fire's eastern edge — primarily open grassy flats — and declared it 85% contained. Crews shifted focus to mop-up operations, back-hauling excess equipment, and identifying suppression repair needs across the fire area. Suppression repair involves stabilizing burned soils, restoring drainage features, and removing hazard trees to reduce erosion and long-term environmental impacts.

Prescribed Fire: Risk and Reward

The incident underscores the inherent tension in prescribed fire management. Planned burns are essential tools for reducing long-term wildfire risk by clearing accumulated fuels, but they carry the possibility of escape when weather windows shift unexpectedly. Fire managers on the Deschutes National Forest had planned multiple prescribed burns across the Bend-Fort Rock, Crescent, and Sisters Ranger Districts in early May, taking advantage of favorable spring conditions before summer restrictions took hold.

With Central Oregon now entering Stage 1 fire restrictions effective May 18 — banning most open fires on public lands — the window for additional spring prescribed burning has effectively closed until conditions change.

Looking Ahead

No structures were reported as destroyed and no evacuation orders were issued during the incident. The Prineville District BLM and Deschutes National Forest are monitoring conditions closely as the 2026 fire season ramps up. Updates are available at centraloregonfire.org.