Talk:List of copper mines in the United States

Data disagreement
I'm adding a map of locations producing copper in the US in 2003, based on data in a shapefile from the USGS found at http://tin.er.usgs.gov/mineplant/. That data appears to be at odds with this article; there is no mention of Missouri in the article, but the mines in the lead belt do produce copper in minor quantities. These mines are in the dataset used for the map, and are also correctly mentioned in the article Copper mining in the United States. There have been other mines in Missouri which produced only or primarily copper in the past, albeit on a small scale by modern standards. I'm familiar with the lead belt, but not with copper mining in general, so I am unable to say whether this is the only place that the map and the article disagree. --Kbh3rd talk 06:34, 9 March 2010 (UTC)
 * The map apparently includes mines producing byproduct copper, while this list is only of mines producing copper as their primary product. Your map and graph in Copper mining in the United States are terrific additions, by the way.  Thanks.  Plazak (talk) 15:00, 9 March 2010 (UTC)

Update needed!
On my list. Don't hold your breath.... --Pete Tillman (talk) 15:55, 29 August 2017 (UTC)

Add UP Mines
There were at least 5 other mining companies back in the early 1900s around the Keweenaw Peninsula in the Upper Peninsula of Michigan, including C&H, Osceola, and Wolverine mines. Should we add those to the list of non-operational copper mines? Archigan (talk) 15:51, 2 July 2020 (UTC)
 * Sure, but only if (as the article says) " The list below includes only those with Wikipedia articles". --Pete Tillman (talk) 20:04, 2 July 2020 (UTC)
 * And of course we can also use new articles on notable mines, past & present! Many good candidates. So many mines, so little time.... --Pete Tillman (talk) 20:06, 2 July 2020 (UTC)

You sound like our local mine inspector, just in broader terms: “There are 600 open mines in the area, and we can only cap 2 or three a year...” Archigan (talk) 03:10, 4 July 2020 (UTC)