Additional Information
Author | Heyl, A.V.; Broughton, W.A.; West, W.S.; |
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Publication Year | 1978 |
Series number | IC16-1978 |
Resource Type | Report |
Physical Description | 45 p. |
Notes | 3rd edition published in 1978. [See also: Upper Mississippi Valley Base-Metal District](https://wgnhs.wisc.edu/catalog/publication/000201) |
Geographic Area | Grant, Green, Iowa, Lafayette |
Tags | Driftless Area, Metallic Minerals, Bedrock Geology, Rocks and Minerals |
ISSN | 0512-0640 |