The Black Tiger Fire was a wake-up call for the modern wildland-urban interface era in Colorado.
Igniting July 9, 1989 in the Sugarloaf area northwest of Boulder, the fire burned just 2,100 acres but destroyed 39 homes, the most destructive wildfire in Colorado by property loss at the time. It became a landmark national case study (documented by the NFPA) that directly influenced Boulder County’s wildland-urban interface building codes and defensible-space requirements.
Every major Colorado fire reinforces the same lesson: the homes most likely to survive are the ones prepared before a fire starts. Decades later its core lesson still holds: how a home is built and what surrounds it determine whether it survives. 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 Boulder foothills can get a free assessment from our Boulder County team.
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The Fourmile Canyon Fire (2010) burned 6,181 acres west of Boulder and destroyed 169 homes, most destructive in CO at the time. Cause and aftermath.
Read the overviewThe NCAR Fire (2022) burned 190 acres near Boulder but destroyed no homes, a widely cited wildfire mitigation success. What worked and why.
Read the overviewThe CalWood Fire (2020) burned 10,113 acres near Jamestown in Boulder County and destroyed 26 homes. Cause, size and aftermath.
Read the overviewThe complete, searchable record of every major Colorado wildfire in history.
Open the full guide2,100 acres in Boulder County; it destroyed 39 homes.
It was the most destructive Colorado fire of its era and a landmark case study that shaped wildland-urban interface building codes.
