Beskrywing30-cu.ft.Minecar.jpg	English: 30-Cu. Ft. Mine car. United Verde Extension Mining Company, Arizona.
Datum	Datum onbekend Unknown date ; pre 1996, also the United Verde Extension mines closed in 1974
Bron	Image courtesy en:Colorado School of Mines http://www.mines.edu/library/digital/photodb/U1330.gif[dead link] Colorado School of Mines (image) Donor: United States Bureau of Mines.
Outeur	OnbekendUnknown author
Toestemming (Hergebruik van die lêer)	http://library.mines.edu/digital/rights.html Public domainPublic domainfalsefalse 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. Hierdie lêer is geïdentifiseer as vry van bekende beperkings onder kopiereg, insluitend alle verwante en naburige regte. https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse

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• 2008-05-04 04:20 Tillman 800×441×8 (251951 bytes) 30-Cu. Ft. Mine car. United Verde Extension Mining Company, Arizona. Donor: United States Bureau of Mines. Source: United States Bureau of Mines. Image courtesy [[Colorado School of Mines]] URL: http://www.mines.edu/library/digital/photodb/U1330.gif