What does the containment percentage mean for wildfires?

By Brooke Williams | Fox 31 News

Several wildfires are burning thousands of acres in Colorado. And while some have not shown significant growth, they remain at low levels of containment after days of firefighting.

As of Friday morning, the Alexander Mountain Fire that started Monday has burned over 9,000 acres and is 5% contained, up from 0% on Thursday. The deadly Stone Canyon Fire that started Tuesday afternoon is at 1,553 acres and 30% contained.

TheĀ Quarry Fire, which started Tuesday and authorities are investigating as arson, has burned more than 400 acres. It was 0% contained until Friday morning when fire crews reported 4% containment. As of Friday afternoon, the fire is reportedly 10% contained.

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