The difficulty of controlling potential wildfire. It is commonly determined by fire behavior characteristics such as rate-of-spread, intensity, torching, crowning, spotting, and fire persistence, and by resistanceto- control. It may be partitioned into particular components such as crown-fire hazard. Carey and Schumann (2003) document that fire hazard reduction is a continual process that cannot be accomplished by a single prescribed fire, or by analogy, thinning treatment (Brown et al., 2003). A physical situation (fuels, weather, and topography) with potential for causing harm or damage as a result of wildland fire (Scott and Reinhardt, 2001).