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Geology and mineral deposits of the Poncha springs NE Quadrangle, Chaffee county, Colorado / by Ralph E. Van Alstine.

By: Alstine, Ralph E. van, 1914-.
Material type: materialTypeLabelBookSeries: Geological Survey Professional Paper; 626.Publisher: Washington : United States Government Printing Office, 1969Description: 52 p. + map. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Colorado | Depósitos de minerales
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