This research developed a probability-based approach to support the wildland fire management decision processes regarding fuel treatment locations and appropriate fire management. Spatial fire behavior data such as fire spread directions and relative fire probability distributions can be created through fire simulations. A directed graph was used to represent the potential fire spread directions between different locations. Combined with concerns such as fire losses and benefits, decision makers can use this approach to determine the best fuel treatment locations and analyze tradeoffs between alternative fire management decisions. Independent from specific fire events, fuel treatment will focus on landscape level expected fire losses or potential benefits from fires. Upon the occurrence of a particular fire event, specific impacts of fire can be analyzed across time to determine the appropriate management strategies.