A San Diego County Planning Commission hearing originally scheduled for April 17 to consider the proposed Cottonwood Sand Mine has been delayed until later this year.

Investor interest in the nascent sector has been intensifying, fueling optimism initially driven by research startups and ...

The practice of deep-sea mining involves using heavy machinery to remove minerals and metals from the seabed, where they ...

Celebrating the Minneapolis wunderkind’s  endless innovation and inspiration by spotlighting his best songs gifted to or ...

The Metals Company, which has been trying for years to exploit battery materials strewn across the ocean floor, announced ...

President Donald Trump’s administration has proposed several changes that would affect the struggling U.S. coal industry.

SAN DIEGO — A 5.2-magnitude earthquake shook Southern ... owner of a former gold mine that operated in the 1870s in Julian. He said some picture frames on the counter at the gift shop fell ...

The U.S. Geological Survey said a magnitude 5.2 earthquake hit the interior of San Diego County in California, with the sheriff's office saying no damage or injuries reported.

A San Diego County firefighter who answered the phone ... Paul Nelson, owner of the Eagle Mining Co., an old-fashioned gold mine in Julian where visitors can learn about panning for gold, said ...

SAN JUAN, Puerto Rico (AP) — A Canadian company announced Tuesday that its U.S. subsidiary submitted applications to the National Oceanic and Atmospheric Administration to mine the seafloor ...

Video above: Elephants at San Diego Zoo react to earthquake A San Diego ... Paul Nelson, owner of the Eagle Mining Co., an old-fashioned gold mine in Julian where visitors can learn about panning ...