Publications - WGNHS

Mineral Exploration and Development Atlas of the Upper Mississippi Valley District

Open-file report; contains unpublished data that has not yet been peer-reviewed.
- WOFR1952-02
  
  Mineral Exploration and Development Atlas of the Upper Mississippi Valley District
  
  Tweedy, G.A.; Heyl, A.V.;
  
  1952
  
  Report: 52 p.

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