So what are these rocks and how did they wind up in the Midwest? KSNT News spoke with Tony Layzell, an assistant scientist ...

Sandstone and limestone tend to be the least ... In fact, flat boulders make good steps. These large landscape rocks are sometimes used to build retaining walls or tiered yards because their ...

The sandstone that forms Rock City’s bizarro world of undulating ground, boulders and pinnacles is ... wind and rain carving up the Rock City landscape and its constellation of geologic ...