Hideaway Hills in South Dakota was an idyllic American community, until a sinkhole tore open that revealed an old mine lurking underneath it — forcing more than a dozen families to flee. Read more:

Hideaway Hills in South Dakota was an idyllic American community, until a sinkhole tore open that revealed an old mine lurking underneath it — forcing more than a dozen families to flee. Read more: ↧ 'It was supposed to be the forever home': 6 years after old mine ca... An investigation by ABC News found numerous instances of dangerous sinkholes opening as aging, abandoned mines erode beneath communities, roads and public lands.