Garrett Electronics - trusted by real miners & prospectors!

Magazine

History & Geology

Las Médulas—The Gem of the Roman Gold Mines

This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.

Online access required. Please .

Add a Comment

Additional articles that might interest you...

Liberty and the Phoenix Mine


Liberty, Washington is located in the mountains near Yakima and Ellensburg. There is nothing much in Liberty except for about 20 houses on patented mining claims and a lot of dry holes.

The Wisdom of Mark Twain—And Tales of Cheating the Unwary Prospector


I (enjoy) Twain’s description of a gold mine, “A hole in the ground with a liar at the top.” Some humor here? You bet, but I’m sure he meant it to be a real eye opener as well.

Greenstone and Gold


Contacts, faults and zones of weak rock are all places that can act as a pipeline to convey gold-bearing fluids, leading to valuable deposits.

Enrichment of Mineral Deposits by Weathering—Part I


The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.

Researching Mineralized Areas


There are a load of ways to do research, and I’m going to talk about how I do it—maybe you’ll get some ideas that will work for you, too.

Placer Gold Deposits of Utah


The placer deposits of Utah occur in two distinct types of environments. These are 1) placers found adjacent to, and derived from, gold, silver and base-metal deposits; and 2) placers found in major rivers and derived from unknown, distant sources.

One of the Richest Beaches Ever Mined


Everyone has heard of the golden beach at Nome, but Nome did not have the richest beach.

Subscription Required:
The Bawl Mill   • Ask The Experts - How were those gold concentrate bricks made?   • Ask The Experts - What should I know about prospecting for titanium?   • Mining Pegmatite Deposits   • Legislative and Regulatory Update   • SS Central America Gives Up Millions in Gold Rush Era Gold   • Falcon Fanatic: Journey of a Novice Detectorist   • Critical Minerals: Titanium   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

Free:
PLP Update: Back to The 'Swamp' on Behalf of Small Miners

Advertisements

Garrett Electronics - trusted by real miners & prospectors!
Precious Metals Recovery plants and equipment
Fighting to keep public lands open to the public
Specializing in the processing of precious metal ores!
Watch prospecting shows on your computer right now
Free Online Sample Issue