Wildfire Containment Lines

Wildfire containment lines are a ground system: crews, dozers, roads, rivers, fuel breaks, weather, flame length, and mop-up must align before bare earth can stop fire spread.

1. Frame 1Wildland crews turn bare earth into a safety buffer when residents face spreading fire.
2. Frame 2The anchor-point gate checks whether crews can start without fire behind them.
3. Frame 3Hand crews and dozers cut a path to mineral soil so flames lose fuel.
4. Frame 4Roads, rivers, and fuel breaks extend the sequence when crews can tie into them.
5. Frame 5The bottleneck is weather and flame length, which can push embers across the line.
6. Frame 6The failure mode appears during mop-up if hot spots survive inside the perimeter.