What does 'head of the fire' refer to?

The term 'head of the fire' specifically refers to the traveling edge of the fire, which is the part of the fire that is actively spreading and moving forward. This is where the fire is typically the most intense, as it has the most fuel available to it and is often influenced by factors such as wind direction and topography, which can accelerate its spread.

Understanding this concept is crucial in wildfire management and firefighting strategies since it helps responders identify where the fire is likely to spread next and focus their containment efforts accordingly. The head of the fire poses the greatest threat to nearby structures, vegetation, and life, making it a critical area of concern in fire operations.