An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive
information, make sure you're on a federal government site.
The site is secure.
The https:// ensures that you are connecting to the official website and
that any information you provide is encrypted and transmitted securely.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Our mineral supplies--Copper |
| Series title | Bulletin |
| Series number | 666 |
| Chapter | Q |
| DOI | 10.3133/b666Q |
| Edition | - |
| Year Published | 1919 |
| Language | ENGLISH |
| Description | p. 103-106 |