The Integrated Landscape Assessment Project (ILAP) was a multiyear effort to produce information, maps, and models to help land managers, policymakers, and others conduct mid- to broad-scale (e.g., watersheds to states and larger areas) prioritization of land management actions, perform landscape assessments, and estimate cumulative effects of management actions for planning and other purposes. The ILAP provided complete cross-ownership geospatial data and maps on current vegetation, potential vegetation, land ownership and management allocation classes, and other landscape attributes across Arizona, New Mexico, Oregon, and Washington. State-and-transition models, developed to cover all major upland vegetation types in the four states, integrated vegetation development, management actions, and natural disturbances to allow users to examine the mid- and long-term effects of alternative management and disturbance scenarios. New model linkages to wildlife habitat, economics, aboveground carbon pools, biomass, and wildfire hazard were developed and integrated through decision-support systems. Models incorporating potential effects of climate change were also developed for focus areas in Oregon and Arizona. This report includes an overview of the structure and components of ILAP along with descriptions of methods and example results for state-and-transition modeling, fuel characterization, treatment economics, wildlife habitat, community economics, and climate change. This report serves as a guide to ILAP. Complete collections of the project's models, maps, data, and tools will be archived and available online through the Western Landscapes Explorer portal (www.westernlandscapesexplorer.info) so that scientists and managers will be able to use and build upon ILAP's products.