TY - RPRT TI - Geochemical characterization of groundwater discharging from springs north of the Grand Canyon, Arizona, 2009–2016 AU - Kimberly R. Beisner AU - Fred D. Tillman AU - Jessica R. Anderson AU - Ronald C. Antweiler AU - Donald J. Bills PY - 2017 DO - 10.3133/sir20175068 UR - https://pubs.usgs.gov/publication/sir20175068 ID - sir20175068 ER -