Geology and resources of fluorine in the United States
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Professional Paper↗
Geology topics
R. E. Van Alstine
Publications and source records attributed to R. E. Van Alstine.
Geologic map of the Poncha Springs Quadrangle, Chaffee County, Colorado
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Miscellaneous Field Studies Map↗
Geologic map of the Poncha Springs NE quadrangle, Chaffee County, Colorado
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Open-File Report↗