This article is within the scope of WikiProject Appalachia, a collaborative effort to increase coverage of Appalachia and the Appalachian Mountains. If you would like to participate, go to the project page to see a list of related articles needing attention.AppalachiaWikipedia:WikiProject AppalachiaTemplate:WikiProject AppalachiaAppalachia articles
This article is within the scope of WikiProject United States, a collaborative effort to improve the coverage of topics relating to the United States of America on Wikipedia. If you would like to participate, please visit the project page, where you can join the ongoing discussions.
This article is within the scope of WikiProject Disaster management, a collaborative effort to improve the coverage of Disaster management 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.Disaster managementWikipedia:WikiProject Disaster managementTemplate:WikiProject Disaster managementDisaster management articles
This article is within the scope of WikiProject Occupational Safety and Health, a collaborative effort to improve the coverage of articles related to occupational safety and health 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.Occupational Safety and HealthWikipedia:WikiProject Occupational Safety and HealthTemplate:WikiProject Occupational Safety and HealthOccupational Safety and Health articles
I removed the first sentence of the "Silica" section. The tunnel was not mined for silica - it was purely for hydropower, and silica was not "discovered" - it was common knowledge that the local sandstone is largely composed of silica (quartz) and silica is not used in steelmaking (in fact, it is a waste product in the slag). — Preceding unsigned comment added by 152.180.11.47 (talk) 17:21, 25 October 2021 (UTC)[reply]
