TY - RPRT TI - Groundwater chemistry and water-level elevations in bedrock aquifers of the Piceance and Yellow Creek watersheds, Rio Blanco County, Colorado, 2013–16 AU - Judith C. Thomas AU - Peter B. McMahon PY - 2018 DO - 10.3133/sir20185142 UR - https://pubs.usgs.gov/publication/sir20185142 ID - sir20185142 ER -