A new interagency strategy to monitor wilderness character helps on-the-ground managers and decision makers assess whether stewardship actions for an individual wilderness fulfill the mandate to preserve wilderness character. Since nearly all wilderness monitoring data depict spatial features, an on-going Forest Service study investigates whether combining these data in map form can provide a spatially explicit understanding of the changes and trends in wilderness character over time. All decisions to build a map of wilderness character utilize the knowledge and experience of park staff. Measures identify where wilderness character is degraded from its baseline condition. Using GIS techniques, researchers processed spatial data from these measures into grids. Each measure, weighted by park staff, reflects its importance in relation to the other measures within an indicator. Maps, generated for each of the four qualities of wilderness character - natural, untrammeled, undeveloped and solitude, or primitive and unconfined, produced an overall map of wilderness character. This study shows the overall condition of wilderness character and how it varies across the landscape, analyzes the effects of different planning alternatives considered in stewardship plans on wilderness character, and provides a baseline from which future monitoring will show the trend in wilderness character over time.