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  • Vegetation Classification and Mapping at Allegheny Portage Railroad National Historic Site

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  • Technical Report NPS/NER/NRTR--2006/079 Stephanie J. Perles1, Gregory S. Podniesinski1, Ephraim A. Zimmerman1, Elizabeth Eastman 2, and Lesley A.Sneddons3 1 Pennsylvania Natural Heritage Program, Western Pennsylvania Conservancy, 208 Airport Drive, Middletown, PA 17057 2 Center for Earth Observation, North Carolina State University, 5112 Jordan Hall, Box 7106, Raleigh, NC 27695 3 NatureServe, 11 Avenue de Lafayette, 5th Floor, Boston, MA 02111 March 2007 U.S. Department of the Interior, National Park Service, Northeast Region, Philadelphia, Pennsylvania

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