TY - RPRT TI - Assessment of spring chemistry along the south rim of Grand Canyon in Grand Canyon National Park, Arizona: A U.S. Geological Survey and National Park Service partnership AU - Robert J. Hart AU - John Rihs AU - Howard E. Taylor AU - Stephen A. Monroe PY - 2002 DO - 10.3133/fs09602 UR - https://pubs.usgs.gov/publication/fs09602 ID - fs09602 ER -