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Talk:List of deepest mines

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How is depth measured?

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Is depth measured from the mine entrance, or from sea level? This should be clarified in the list criteria. Hadron137 (talk) 01:45, 3 September 2018 (UTC)[reply]

List criteria

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There is some ambiguity about what this list includes. Is this only for active mines, or non-operational mines too? What if they have filled with water, collapsed, or otherwise sealed? A paragraph to specify inclusion criteria is needed. The criteria should also specify a minimum depth for this list, otherwise it's open-ended. Is there a significant depth that should be used, like an accepted geologic boundary or historic example? Hadron137 (talk) 02:32, 3 September 2018 (UTC)[reply]

It should also be made clear that bore holes and oil wells aren't included. Hadron137 (talk) 03:43, 3 September 2018 (UTC)[reply]
 Done. I added my best effort at an inclusion criteria. Please feel free to edit/modify as appropriate. Hadron137 (talk) 00:03, 11 September 2018 (UTC)[reply]

Another U.S. Mine (2016)

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Hecla Mining's "Lucky Friday #4", 2.92 km, at https://me.smenet.org/webContent.cfm?context=1&webarticleid=1986

01:02, 6 September 2022 (UTC) 2601:8A:C180:70:B156:BEDF:F5CF:20D0 (talk) 01:02, 6 September 2022 (UTC)[reply]