Which part of the fire is characterized as the opposite of the head and less intense?

The term that refers to the part of the fire that is the opposite of the head and less intense is known as the fire heel. In a wildfire situation, the head of the fire is the most active and intense area, typically where the fire is advancing most rapidly, driven by wind or fuel availability. Conversely, the fire heel is located at the rear of the fire where the intensity is lower, and it tends to be less affected by environmental factors such as wind. This area often experiences decreased flame heights and a slower rate of spread, making it easier for firefighters to manage and contain.

The concept of the fire heel plays a crucial role in fire behavior and management strategies. It can serve as a point of control for firefighters, allowing them to establish containment lines and engage the fire more effectively. Understanding this terminology and relationship helps fire investigators and personnel assess fire dynamics and develop firefighting tactics.