Publications - WGNHS

A Very Brief History of the Wisconsin Mineral Development Atlas: General Information and Procedures Concerning Zinc-Lead Atlas

Open-file report; contains unpublished data that has not yet been peer-reviewed.
- WOFR1980-04
  
  A Very Brief History of the Wisconsin Mineral Development Atlas & General Information and Procedures Concerning Zinc-Lead Atlas
  
  Heyl, A.V.; Broughton, W.A.;
  
  1980
  
  Report: 6 p.
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Open-file report; contains unpublished data that has not yet been peer-reviewed.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.
Geology of the Upper Mississippi Valley Base-Metal District
- IC16-1978
  
  Geology of the Upper Mississippi Valley Base-Metal District (3rd edition)
  
  Heyl, A.V.; Broughton, W.A.; West, W.S.;
  
  1978
  
  Report: 45 p.
Upper Mississippi Valley Base-Metal District

Companion volume to Information Circular 16 (third edition). Prepared for 24th Annual Meeting, Institute on Lake Superior Geology.
- FTGB01
  
  Upper Mississippi Valley Base-Metal District
  
  Broughton, W.A.; Heyl, A.V.; Mudrey, M.G., Jr.; Ostrom, M.E.; Paull, R.K.; Paull, R.A.; West, W.S.;
  
  1978
  
  Report: 39 p.

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