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Bear Trap corundum deposit, Madison County, Mont.
| Author: | Hopkins, John B. |
|---|---|
| Additional Authors: | Taber, John. |
| Year: | 1947 |
| Document Type: | BMRA |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | I 28.23:4039 |
| Series: | Report of investigations / Bureau of Mines ; |
| Report Number: | 4039 |
| Subject: | Corundum--Montana--Madison County |
| Link: | https://hdl.handle.net/2027/mdp.39015078487967 |
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