File:Coal seam blasting.jpg
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| Description | To facilitated mining of a coal seam in Gillette, Wyoming, blasting was used to loosen the coal after the overburden was removed. Approximately half a million tons of coal in a seam 80 feet thick was loosened by this single blast. |
| Source | http://www.osmre.gov/scripts/album.pl?photo=Blasting/1006.jpg;photo_height=150 |
| Author | UsGov |
| Permission (Reusing this file) |
Free for all use |
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:49, 10 May 2006 | | 252 × 260 (26 KB) | Zimbres (talk | contribs) | {{Information| |Description=To facilitated mining of a coal seam in Gillette, Wyoming, blasting was used to loosen the coal after the overburden was removed. Approximately half a million tons of coal in a seam 80 feet thick was loosened by this single bla |
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