Just after the New Year, the U.S. Interior Department notified Rocky Mountain Industrials, or RMI, operators of a limestone quarry above Glenwood Springs, Colorado, that mining of so-called “common ...

The owner of a limestone quarry above Glenwood Springs has spent several years arguing that its contentious plan for an exponential expansion of the mine should be expedited under the 1872 Mining ...

Politically connected investment firm Rocky Mountain Industrials wants to grow its Mid-Continent Limestone Quarry, seen in the upper left of the photo, above Glenwood Springs from about 16 acres to ...

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A tiny creature that was half the size of a mallard was found in rocks that were dated back to the dinosaur age, according to the University of Cambridge. The amazing find was nicknamed the ...

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Lorries drive into the limestone quarry at Ortum in West Pokot. The limestone deposits have attracted a cement factory to West Pokot. Photos/JARED NYATAYA Photo/JARED NYATAYA. Titanium is an important ...

One of the most well-known quarries in Singapore is Little Guilin, located in Bukit Batok Town Park. Named for its resemblance to China’s famed Guilin landscape, this quarry features towering granite ...

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