Description: <DIV STYLE="text-align:Left;"><P STYLE="text-align:Justify;font-size:16ptmargin:7 0 7 0;"><SPAN><SPAN>The principal sources for inference of formation depth of the Glen Canyon Group are Freethey and Cordy (1991) and Freethey and others (1988). A generalized map of formation-depth ranges in polygon format was provided by the U.S. Geological Survey (1996).</SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV>
Copyright Text: Freethey, G. W., and Cordy, G. E., 1991, Geohydrology of Mesozoic rocks in the Upper Colorado River Basin—excluding the San Juan Basin—in Arizona, Colorado, New Mexico, Utah, and Wyoming: U.S. Geological Survey, Professional Paper 1411-C, 118 p.
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Freethey, G. W., Kimball, B. A., Wilberg, D. E., and Hood, J. W., 1988, General hydrogeology of the aquifers of Mesozoic age, upper Colorado River basin—excluding the San Juan Basin—Colorado, Utah, Wyoming, and Arizona: U.S. Geological Survey, Hydrologic Investigations Atlas HA-698, scale 1:2,500,000, 2 sheets.
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U.S. Geological Survey, 1996, Ground water atlas of the United States: Segment 2: Arizona, Colorado, New Mexico, and Utah.