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Summary
| Description |
English: Trends in underground versus surface mining of US coal, 1949-2011 |
| Date | |
| Source | Own work |
| Author | Plazak |
Data from US EIA website: http://www.eia.gov/coal/data.cfm#production
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
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- Under the following conditions:
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This graph image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with
{{vector version available|new image name}}.
It is recommended to name the SVG file “US coal production -mining type.svg”—then the template Vector version available (or Vva) does not need the new image name parameter. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:45, 6 August 2013 | | 1,900 × 1,275 (33 KB) | Plazak | User created page with UploadWizard |
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