CRYSTAL PARK, Mont. — Molten granite formed the Pioneer Mountain Range in southwest Montana about 72-million years ago. As the granite cooled, water carried quartz and other minerals through the rocks ...

Crater of Diamonds State Park in Arkansas is the only state park in the U.S. where you can dig for diamonds and keep them. You'll also be able to find gems like quartz, agate, garnet, and jasper ...

This story was published in partnership with The Maine Monitor, a nonprofit and nonpartisan news organization. To get regular coverage from the Monitor, sign up for a free Monitor newsletter here. The ...

Western North Carolina is known for its hills full of hidden treasures. From rubies and sapphires to emeralds and gold, the region is stocked with gems, stones and minerals still waiting to be ...

DILLON, Mont. — Molten granite formed the Pioneer Mountain Range in southwest Montana about 72-million years ago. As the granite cooled, water carried quartz and other minerals through the rocks and ...

At Crater of Diamonds State Park in Arkansas, you may just find a diamond in the rough. Crater of Diamonds State Park in Arkansas is the only state park in the U.S. where you can dig for diamonds and ...