Proposed limestone mining like a Parley’s Canyon mine would harm air quality, watersheds and the beauty of the Wasatch, but ...

While there are several differences between the two, the key difference between limestone and gravel is their compositions.

By analyzing microfossils — fossils about the size of a thumbnail — within the limestone, researchers found that the tiny ancient organisms preserved in the stone were from Europe, according ...

U.S. Rep. Mike Kelly of Butler, R-16th Dist., and Democratic U.S. Sens. Bob Casey and John Fetterman of Pennsylvania ...

Fifty years of change on iconic limestone pavements has revealed mixed fortunes for one of the most distinctive landscapes in the UK. The findings, which reveal large changes since the 1970s, are from ...