| Online link | https://doi.org/10.3133/ofr20131174 |
|---|---|
| Description | In 1994, the largest salt mine in North America, which had been in operation for more than 100 years, catastrophically flooded when the mine ceiling collapsed. In addition to causing the loss of the mine and the mineral resources it provided, this event f |
| Originators | Yager, Richard M. |
| Publication | U.S. Geological Survey Open-File Report 2013-1174 |