https://local12.com/news/nation-world/sinkholes-appearing-in-neighborhood-reveal-old-underground-mine-south-dakota-gold-unsafe-homes-lost-geological-engineering-mineral-unstable-chaos-cracks-disaster#
https://local12.com/news/nation-world/sinkholes-appearing-in-neighborhood-reveal-old-underground-mine-south-dakota-gold-unsafe-homes-lost-geological-engineering-mineral-unstable-chaos-cracks-disaster#
LOCAL12.COM
Sinkholes appearing in neighborhood reveal old underground mine
The earth began collapsing around them, leaving them wondering if their home could tumble into a gaping hole.
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