Talk:Hull–Rust–Mahoning Open Pit Iron Mine

A fact from Hull–Rust–Mahoning Open Pit Iron Mine appeared on Wikipedia's Main Page in the Did you know column on 14 November 2006. The text of the entry was as follows:

Did you know... that the Hull-Rust-Mahoning Open Pit Iron Mine, the largest open pit iron mine in the world, is so large that the nearby town of Hibbing, Minnesota was relocated in 1919 to allow more iron ore to be mined?

A record of the entry may be seen at Wikipedia:Recent additions/2006/November.

Wikipedia

Mining High‑importance

	This article is within the scope of WikiProject Mining, a collaborative project to organize and improve articles related to mining and mineral industries. If you would like to participate, you can edit the attached article, or visit the project page, where you can see a list of open tasks, join in the discussion, or join the project.MiningWikipedia:WikiProject MiningTemplate:WikiProject MiningMining articles
High	This article has been rated as High-importance on the project's importance scale.

Minnesota Mid‑importance

	Minnesota portal This article is within the scope of WikiProject Minnesota, a collaborative effort to improve the coverage of articles related to Minnesota on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MinnesotaWikipedia:WikiProject MinnesotaTemplate:WikiProject MinnesotaMinnesota articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

National Register of Historic Places High‑importance

	National Register of Historic Places portal This article is within the scope of WikiProject National Register of Historic Places, a collaborative effort to improve the coverage of U.S. historic sites listed on the National Register of Historic Places on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.National Register of Historic PlacesWikipedia:WikiProject National Register of Historic PlacesTemplate:WikiProject National Register of Historic PlacesNational Register of Historic Places articles
High	This article has been rated as High-importance on the project's importance scale.

Importance

Is this, as the MN state NRHP source states "The world’s largest open pit mine", or is it merely the largest open pit iron ore mine, as the article states? Go for the broader claim if it is accurate! doncram (talk) 05:31, 22 December 2007 (UTC)[reply]

I don't know the answer. I also wonder if it is currently true, considering that some very large mines in China have been developed since that NHL application was written.--Appraiser (talk) 16:21, 23 December 2007 (UTC)[reply]

This can't be the largest if it produces 8 Mt per year, when Carajás Mine in Brazil produces 290 MT per year--Leobarlach (talk) 16:14, 12 April 2019 (UTC)[reply]

Sentence not precise

"The mine is still operated today by the Hibbing Taconite Company, and taconite pellets are extracted at the rate of 8.2 million tons annually (not counting waste overburden)."

"taconite pellets" are not extracted, rather they are produced by agglomerating the concentrate that results from complex mechanical and magnetic processing of the ore.

"not counting waste overburden" - that number also doesn't include the waste or tailings from processing the ore. Typically 2/3 of the processed ore becomes tailings. So the tonnage removed from the mine = (overburden + processed ore). Processed ore = (tailings + concentrate). The pelletized concentrate = 8.2 million tons per year.

Dougher (talk) 05:39, 11 September 2008 (UTC)[reply]