TY - RPRT TI - Environmental characteristics and water quality of hydrologic benchmark network stations in the west-central United States, 1963-95 AU - Melanie L. Clark AU - C. A. Eddy-Miller AU - M. Alisa Mast PY - 2000 DO - 10.3133/cir1173c UR - https://pubs.usgs.gov/publication/cir1173C ID - cir1173C ER -