A newly identified clam eats limestone rock, turning it into sand.

Carbon dioxide (CO₂) is naturally removed from the air when it reacts with certain types of rock. We can accelerate this ...

The DePauw Nature Park was the site of an active limestone quarry from 1917 to 1977. The limestone rock began forming 350 million years ago from the remains of animals living on the bottom of an ...

CONNOR: Good thinking! I read a bit about limestone on the bus journey. Limestone is a sedimentary rock created by layers of skeletons and shells of sea creatures found in ancient, warm ...

In some locations there are land plants and reptile tracks. This layer of rock, known as the Redwall Limestone, forms a sheer cliff 500 ft high or more in most areas. The limestone gets its color ...

As one of The Nature Conservancy’s four preserves in the state, Blowing Rocks is the smallest, the busiest and the oldest.

On Saturday, Oct. 26, at about 7:55 p.m., Limestone County Sheriff Deputies responded to a call for a possible overdose in ...

A $620 million land deal believed to be the most lucrative in Southwest Florida history became official Oct. 28, as about ...

LOVES PARK, Ill. (WIFR) - A once popular picnic shelter in Rock Cut State Park now sits quiet and littered with graffiti.

Carbon dioxide (CO2) is naturally removed from the air when it reacts with certain types of rock. We can accelerate this ...

Need a break? Play the USA TODAY Daily Crossword Puzzle. Today, it’s the largest stretch of exposed Anastasia limestone, or coquina rock, along the Atlantic coast. Its backdrop is teal ocean ...