A single mysterious benefactor is shelling out hundreds of millions of dollars to help humans learn how to become an aquatic ...

Most surprising of all are the carrières—the old limestone quarries that fan out in a deep and intricate web under many neighborhoods, mostly in the southern part of the metropolis. A city ...

I hope the young climbers we have with us are going to spot some things about the way this rock was formed, but also about the geography and the way this old limestone quarry has been affected by ...

Researchers Astounded to Find a 9-Million-Year-Old Fish Fossil in Exceptional Condition; Is Ancestor to Great White Shark ...

Two limestone quarries that have been described as making a “significant contribution” to the supply of construction ...

A worker at Dewars Farm Quarry in Britain was in his vehicle when he unknowingly uncovered an old highway—but this ... footprints on the quarry’s limestone floor. The initial “unusual ...

3 letter citing permit violations and a lack of evidence of market development. RMI, which currently mines the Mid-Continent limestone quarry north of Glenwood Springs, has been selling limestone for ...

Shipments of limestone on the Great Lakes totaled 28. ... the trade’s 5-year average by 2.9 percent. Loadings from U.S. quarries decreased 3.4 percent from the prior year to 22.8 million tons.