An area of unburned fuel between two fingers, or between a finger and the main body of the fire is called:

The term that best describes an area of unburned fuel located between two fingers of fire or between a finger and the main body of the fire is referred to as a pocket. This area plays a critical role in fire behavior as it can serve as a potential fuel source that may become ignited, thereby allowing the fire to spread further. Understanding the layout of fire, including pockets, is essential for effective fire suppression and for predicting the fire's potential movement.

The other terms have different meanings in the context of fire behavior. "The green" refers to areas that have not been affected by fire and still contain live vegetation, making it a valuable resource for limiting fire spread. A "finger" is a protrusion of fire that extends outward from the main fire body, usually characterized by its own advancing edge. "The heel" denotes the rear section of a fire where it is burning more slowly or where the flames are less intense. Recognizing these distinctions helps firefighters strategize suppression efforts more effectively.