Description: Formation thickness contours were digitized from Dam and others (1990), U.S. Geological Survey hydrologic investigations atlas.
Copyright Text: Dam, W. L., Kernodle, J. M., Thorn, C. R., Levings, G. W., and Craigg, S. D., 1990, Hydrogeology of the Morrison Formation in the San Juan structural basin, New Mexico, Arizona, and Utah: U.S. Geological Survey, Hydrologic Investigations Atlas, HA-0720-J, 2 sheets.