TY - RPRT TI - General hydrogeology of the aquifers of Mesozoic age, Upper Colorado River Basin - excluding the San Juan Basin - Colorado, Utah, Wyoming, and Arizona AU - Geoffrey W. Freethey AU - Briant A. Kimball AU - Dale E. Wilberg AU - James W. Hood PY - 1988 DO - 10.3133/ha698 UR - https://pubs.usgs.gov/publication/ha698 ID - ha698 ER -