They can be a life-threatening disaster—or a pricey nuisance. Here’s what you need to know about the depressions and holes that can form beneath our feet. Increased use of groundwater caused ...

VARIOUS SINKHOLES FILL THIS PROPERTY. ONE OF THEM RIGHT HERE, FILLED WITH DIRT, ROCK, CEMENT AND MACADAM. THE LARGEST SINKHOLE THEY’VE SEEN HAS BEEN BIGGER THAN THIS GREEN. IT’S NOT GOING TO ...

let's explore the sinkholes themselves. How were they formed? Lake Huron, the third largest of the Great Lakes, is contained within a basin underlain by ~400 million year old (0.4 bya) limestone ...