Most of us think about erosion on the surface of the earth, but erosion can occur in the subsurface as well. In fact, ...

An curved arrow pointing right. Sinkholes seemingly come out of nowhere, swallowing everything in their path, and generally looking like the apocalypse. But there is some pretty simple science to ...

While fairly rare, sinkholes are still a danger to people all over the world. They can vary from a few feet to hundreds of acres wide and from less than 1 to more than 500 feet deep. So ...

Sinkholes are not always associated with mining ... A sinkhole is an area of ground that has no natural external surface drainage and can form when the ground below the land surface can no ...