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Trees on our campus sequester and store carbon, mitigate urban heat island effects, ameliorate air pollution, reduce stormwater runoff, improve water quality, provide habitat for native birds and other animals, and enhance aesthetics. Adequate planning and management of this valuable resource first requires a sound understanding of existing conditions. To this end, a collaborative group of faculty, staff, and students at West Chester University initiated the Green Legacy Project. We conducted an inventory and assessment of north campus tree resources and developed a GIS management database. Approximately 1900 trees cover 16% of north campus, half of which are non-native species. The value of the trees is an estimated $3.2 million with annual benefits of $250,000.