@article {4997, title = {Back-country Data Collection System for the Great Smoky Mountains National Park}, year = {1975}, month = {May 6}, institution = {The Pennsylvania State University Cooperative Park Studies Unit}, keywords = {Conservation -- Trails, Trail erosion, Trail maintenance, Trails}, isbn = {4}, url = {http://diglib.lib.utk.edu/dotsdata/Borden_Back-CountryDataCollectionSystem1975.pdf}, author = {Borden, F. Yates and Turner, Brian J and Devine, Hugh A} }