Hydrogeology of the Ojo Alamo Sandstone in the San Juan structural basin, New Mexico, Colorado, Arizona and Utah [map] / Department of the Interior, U.S. Geological Survey ; by Conde ́R. Thorn [and others].
"A contribution of the Regional Aquifer-System Analysis Program"--Envelope. Includes text, bibliography, 2 tables, location map, 2 ancillary maps, hydrograph and stratigraphic chart.