2012 · Jefferson County

The Lower North Fork Fire

The 2012 Lower North Fork Fire began as a state prescribed burn that escaped, killing three residents and forcing Colorado to overhaul its controlled-burn policy.

The Lower North Fork Fire is one of Colorado’s most consequential fires, not for its size, but for how it started and what it changed.

Overview

On March 26, 2012, a Colorado State Forest Service prescribed burn southwest of Denver reignited and escaped during a Red Flag wind event, racing into a residential area. Three residents died and 27 structures were destroyed.

Aftermath

The tragedy prompted Colorado to temporarily suspend state prescribed burns, restructure oversight of the program, and change liability rules, a turning point in how the state balances the benefits and risks of controlled fire.

Lessons

What the Lower North Fork Fire teaches Colorado homeowners

Every major Colorado fire reinforces the same lesson: the homes most likely to survive are the ones prepared before a fire starts. It is a reminder that even beneficial fuel-reduction tools demand extreme caution, and that homeowners should never rely solely on others to manage the fuels around their property. Creating defensible space, hardening the home against embers, and documenting the work for insurance and grant funding are the highest-leverage steps a homeowner can take.

Homeowners in the Denver Foothills region can get a free assessment from our Denver Foothills team.

Not sure where your property stands? Check your wildfire risk score in under a minute, watch for new starts on the active fires map, and set up emergency fire alerts so you never miss an evacuation order.

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FAQ

Questions about the Lower North Fork Fire fire

What caused the Lower North Fork Fire?

An escaped Colorado State Forest Service prescribed burn that reignited during high winds.

How many people died in the Lower North Fork Fire?

Three residents died and 27 structures were destroyed.

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