This study is one of a series of studies appraising the water-bearing properties of the Navajo Sandstone and associated formations in southern Utah. The study area is about 4,600 square miles, extending from the Utah-Arizona State line northward to the San Juan-Grand County line and westward from the Utah-Colorado State line to the longitude of about 109 degrees 50 minutes.
United States Geological Survey, "Bedrock Aquifers of Eastern San Juan County, Utah" (1985). All U.S. Government Documents (Utah Regional Depository). Paper 217.