More than 150 years after the gold rush first began, some Americans are still digging for riches all over California.

The water bordered by the Southern United States, Mexico and Cuba will be critical to shipping lanes and vacationers whether it's called the Gulf of Mexico, as it has been for four centuries, or the ...

Advocates say mining would create jobs and help the economy; opponents say mining will pollute the precious boundary waters.

USGS researchers have unveiled the first map of prospective locations for hydrogen gas in the contiguous United States — and ...