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[Trace Elements Program, Field and Colorado Plateau Projects, February 1948]

Description: Two illustrations showing locations of Trace Elements Offices in the United States and an index map of part of the Colorado Plateau produced for a Febuary 1948 report of the U.S. Geological Survey's trace element investigations.
Date: 1948-03~
Creator: Geological Survey (U.S.). Trace Elements Office.
Partner: UNT Libraries Government Documents Department

[Figures 1-7: Trace Elements Program Maps]

Description: Maps of Trace Elements Programs field projects, including locations of drill holes for the Colorado Plateau project and location of eastern oil shale in Tennessee.
Date: 1948-06~
Creator: Geological Survey (U.S.). Trace Elements Office.
Partner: UNT Libraries Government Documents Department
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