Opal-mining is one of the world’s most harrowing pursuits, but potentially one of the most rewarding as well. To find opals, a modern treasure hunter must dig random holes in areas of known ...

Also located in Denio, Bonanza Opal Mine Denio gives visitors the chance to search for opals. The mine is located about 5,300 feet in elevation in the northern Nevada desert.

CICERO, Ind. (Hamilton County Reporter) — Dean Caldwell of Cicero has been mining opal and obsidian for six months of the year in Mexico for the last 15 years. Last year, he pulled an opal out ...

Dennis Hooper, a longtime rockhound, mines his claim to supply his store, High Country Opal. Brightly painted signs aimed at the highway proclaim that the store is open 365 days a year -- an idea ...

While, practically speaking, these excavated hollows in the sandstone offer residents a respite from the extreme conditions, the reason they exist is the same reason the town exists: opal mining.