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ABC NewsThirteen homeowners in Hideaway Hills, South Dakota, were forced to evacuate their homes in April 2020 after a sinkhole nearly 30-feet wide opened without warning. Crews lowered into the void and discovered a network of century-old mine shafts extending beneath the neighborhood. An ABC News investigation found that these homeowners were not alone. In some parts of the country, dangerous sinkholes are opening as aging, abandoned mine infrastructure erode beneath communities, roads and public lands.
On the profile · Oct 6, 2026