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2. Underground hard-rock mining - Wikipedia

   en.wikipedia.org/wiki/Underground_hard-rock_mining

   The mining method selected is determined by the size, shape, orientation and type of orebody to be mined. The orebody can be narrow vein such as a gold mine in the Witwatersrand, the orebody can be massive similar to the Olympic Dam mine, South Australia, or Cadia-Ridgeway Mine, New South Wales. The width or size of the orebody is determined by ...

3. Gold mining - Wikipedia

   en.wikipedia.org/wiki/Gold_mining

   A miner underground at Pumsaint gold mine, Wales; c. 1938 Landscape of Las Médulas, Spain, the result of hydraulic mining on a vast scale by the Ancient Romans. The exact date that humans first began to mine gold is unknown, but some of the oldest known gold artifacts were found in the Varna Necropolis in Bulgaria.

4. List of active gold mines in Nevada - Wikipedia

   en.wikipedia.org/wiki/List_of_active_gold_mines...

   In 2020 mining overall contributed $9.5 billion to the state's economy, $8.4 billion from gold and silver mining (all silver produced in Nevada is as a by-product from gold mining). Gold production from Nevada was higher than any other U.S. state, 4,632,690 troy ounces (144,090 kg) in 2020 (a decrease of 4.8% on 2019), accounting for 76% of ...

5. Miner - Wikipedia

   en.wikipedia.org/wiki/Miner

   Renowned as one of the most dangerous jobs in the world - and for good reason. Cave-ins, explosions, toxic air, and extreme temperatures are some of the most perilous hazards observed to take place in underground mining, as well as the overall long-term health effects of underground mining conditions. [3]

6. Thunder Mountain Gold Commences Underground Work at Their ...

   www.aol.com/news/2012-12-12-thunder-mountain...

   Thunder Mountain Gold Commences Underground Work at Their South Mountain Mine Joint Venture BOISE, Idaho--(BUSINESS WIRE)-- Thunder Mountain Gold, Inc. (TSX-V: THM; OTCQB: THMG) (the Company), is ...

7. Category:Underground mines in the United States - Wikipedia

   en.wikipedia.org/wiki/Category:Underground_mines...

   Pages in category "Underground mines in the United States" The following 76 pages are in this category, out of 76 total. This list may not reflect recent changes .

8. Willow Creek mining district - Wikipedia

   en.wikipedia.org/wiki/Willow_Creek_mining_district

   The Willow Creek mining district, also known as the Independence Mine/Hatcher Pass district, is a gold-mining area in the U.S. state of Alaska. Underground hard-rock mining of gold from quartz veins accounts for most of the mineral wealth extracted from the Hatcher Pass area. The first mining efforts were placer mining of stream gravels, and ...

9. Tour guide killed after elevator malfunctions underground in ...

   www.aol.com/multiple-people-trapped-underground...

   A tour guide died at a Colorado gold mine after an elevator experienced a mechanical issue hundreds of feet below ground, trapping a dozen tourists for several hours, authorities said. The ...