Plans of Calumet and Hecla conglomerate mine
Bewaard in:
| Hoofdauteur: | |
|---|---|
| Formaat: | Kaart |
| Taal: | Engels |
| Gepubliceerd in: |
U. S. Geological Survey
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| Reeks: | Professional paper 144 |
| Tags: |
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Gelijkaardige items: Plans of Calumet and Hecla conglomerate mine
- Longitudinal sections of Allouez conglomerate and Keweenaw mine
- Sections showing development along fissures from Ahmeek mine to Pennsylvania mine, Keweenaw counyy, Mich.
- Longitudinal section of forest Lode, evergreen mine
- Development of Minesota fissure and associated Lodes of Michigan mine
- Sections showing development along mass fissure, Ahmeek mine
- General geologic map from Presque isle river to Victoria mine, Michigan