mining dredging gold

Gold dredge - Wikipedia

A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story machines built in the first half of the 1900s. Small suction machines are currently marketed as "gold dredges" to individuals seeking gold: just...

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Suction Dredging for Gold - The New 49ers

Most gold mining today is done in small operations — one or two persons working at a time — often with the use of suction dredges. A suction dredge is a powerful underwater-type of vacuum cleaner. It sucks up streambed material (rocks, sand, gravel, silt, gold and other minerals), passes it up through a suction hose, and...

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Mining For Gold - Dredging - YouTube

Sep 13, 2012 ... Today we are dredging for gold on Peters Creek in Petersville,AK.Working the bedrock and crevices trying to fill the sluice box with color. We averaged about...

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Gold Mining - 6 Inch Dredge 1 - YouTube

Dec 16, 2013 ... Dredging Video 1 Of 3. Sorry for the low audio.The dredge kinda over ran me haha. THANKS TO KURT CHAZ AND DERRICK FOR ALL THE GREAT HELP! Thanks for watching...

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Huge Alaska Gold Dredge 8 - YouTube

Jun 1, 2013 ... This video was taken of the Gold Dredge 8 located outside Fairbanks, Alaska. This massive gold dredge operated from 1928 to 1959 and solidified itself as one of the most profitable gold mining dredges in Alaska mining history. In 1984 the dredge and surrounding mine was opened to the public for gold...

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Dredge Mining, Dredging, Mining Techniques, Gold Mining ...

Underwater excavation is called dredging. Dredging is the process by which a water body is deepened. In simple terms, dredging means removal of material from the bottom of a water body.

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Gold Dredging - Mine For Gold

Gold Dredging has been a popular past time with New Zealand prospectors for many years. Choosing the right gold dredge for your job makes all the difference.

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Proline Gold Mining and Prospecting Equipment/Gold Dredges

In addition, the configuration of the flare dredge allows the sluice box to sit much closer to the water, improving power and efficiency. The result of this design is greater dredge vacuum, less horse power required for operation, fewer rock jams, and improved fine gold recovery. We've always used the finest cross-link...

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Dredge No 4 - Yukon Info

Dredge No 4 was a giant gold digging machine. Imagine this vessel, inching forward, year after year, forever altering the landscape. Dredge No. 4 was the largest wooden-hulled bucket dredge in North America. It was designed by the Marion Steam Shovel Company, and built for the Canadian Klondike Mining Company in...

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Gold DREDGES - Keene - Gold Fever Prospecting

Whether you're a weekend warrior, Treasure Hunter or a professional Mining Engineer, Keene has what you need to make the most of your gold venture. With a broad range of suction dredge models to choose from as well as a wide range of conversions and add-on packages to suit your particular needs, we are the source...

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New Law: No More Than 850 Gold-Mining Dredges Allowed in ...

Aug 15, 2013 ... They say rivers in Oregon have become crowded with gold miners using vacuum-like dredges, called suction dredges, as a result of rising gold prices and new restrictions on the practice in neighboring states. California banned suction dredge mining in 2009, and this year the EPA began requiring Idaho...

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Yankee Fork Gold Dredge - Official Website

It was donated to the U.S. Forest Service by J.R. Simplot in 1966, and in 1980 the Yankee Fork Gold Dredge Association began providing guided tours to the public. ... The dredge ran from 1940 to 1952 stopping once from October 1942 until 1946 for WWII and then again in 1947 when Snake River Mining Co (Silas Mason)...

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Walter Johnson: Gold Dredge Pioneer - Yukon - Charley Rivers ...

Courtesy of the Johnson Family. Mining engineers have developed a monster machine unlike anything else in the world, a giant dredge that scoops up thousands of yards of material every day to sift through it and find and save every tiny particle of gold. —Popular Mechanics, 1938. During the Klondike-Alaska gold rush of...

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Shell dredging-Largest suction dredge, Companies, Alaska, gold ...

Oct 23, 2016 ... The most efficient placer mining method ever deployed. Our 15” Shell dredge is the largest suction dredge in Alaska, 123 ft. in length and 25 ft. wide, setting 3 ft. above water line to deck. This dredge is capable of processing 400 cubic yards per hour and generates 500 KW to run the concentrators and...

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Gold Prospecting Alaska Mining & Diving Supply, Inc. Anchorage ...

AMDS - Alaska Mining & Diving Supply is a leading source of equipment for the small scale and recreational miner. ... This site is not only intended to offer equipment for sale but to direct you to information on prospecting and mining. ... Hookah Diving - Information on the diving system used on many suction gold dredges.

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Gold dredge – Gold and gold mining – Te Ara Encyclopedia of New ...

Wow they don't make gold dredges like that anymore, reminds me of a nz postcard with a bucket dredge on it, wonder if it's the same one.. Does anyone know what happened to this dredge? would love to go see it! Add new comment. Your name *. E-mail *. The content of this field is kept private and will not be shown...

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Century-Old Gold Dredge Still Tells the Story of Breckenridge's ...

Mar 19, 2015 ... A dredge that was built for gold mining still lies in a small pond just east of Breckenridge. It's called the Reiling Dredge.

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Gold Mining in Nome | Dredge no.7 Inn, Nome, Alaska

The Inn is run by a true Nome mining family that has been here for generations.

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Gold Fever Giant Gold Machines - Gold Dredges

Giant Gold Machines - Gold Dredges. Yuba Mining Dredge Early in the Gold Rush, miners used shovels and other simple tools to scoop up river gravels. The easy gold was soon picked clean. The challenge took on new proportions: millions of tons of earth had to be dug up and sifted. QTVR Panorama Click here to see

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Recreational Panning & Dredging “Rules of Thumb ... - Forest Service

Apr 28, 2010 ... A mining dredge is a device which "vacuums" up water and gravel from a stream or river and then directs the discharge through a riffle box where gold and other heavy objects are trapped. A recreational scale dredge setup commonly consists of a water pump driven by a small gasoline engine and a.

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How to dredge for gold – American Mining Rights Association

Jun 27, 2013 ... When the gold dredge was first created to mine placer gold from rivers and streams it was a multi-story piece of heavy equipment that took several people to operate effectively. Gold dredges today are much smaller and more manageable – and some dredges can even be worn as a backpack for easy...

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Hunt for gold in Washington's waterways dredges up conflict | PBS ...

Jan 25, 2016 ... Gold fever is alive in the mountains of Washington state, but the use of new machinery in waterways is causing conflict with activists. Local fishermen are pushing for regulations on hydraulic dredging, a method that boosts the efficacy of small-scale mining operations but may cause lasting damage to fish...

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Gold-sucking technique dredges up California controversy | Fox News

Apr 14, 2013 ... The controversy is about a process called suction dredge mining, a practice popularized on the Discovery Channel show Bering Sea Gold but banned for the last four years in California, as state courts continue to weigh new environmental regulations.

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Paru River Gold Mine Dredging Project, a Dredge Mining Case Study

Ellicott® International sold a bucketwheel dredge to a Brazilian company for gold mining in the Amazon. Mineracao Trans Amazonica (MTA) placed the B890 "Wheel-Dragon™" dredge in service near the Paru River west of Jari in the vicinity of Monte Dorado, Brazil. MTA is an affiliate of North Brazilian Mining Corp., Ltd. of...

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Dredging plants, gold diamond mining dredge processing plants

DOVE provides dredge equipment dredging machinery, dredging plants, gold diamond gemstone dredge equipment, dredging equipment, mining dredgers, dredge plants.

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Stream Channel Protection Program: Recreational Mining Permits

Do you want to dredge or mine gold in Idaho? Review the requirements for obtaining a recreational mining permit.

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Gold dredging - Alaska's Digital Archives

Subject. gold dredging (88); dredges (66); gold mining equipment (52); gold mining (49); mining (21); dredging (17); mining equipment (17); hoisting machinery (14); nome (alaska) (13); tailings embankments (11)...

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California high court upholds ban on dredges to extract gold

Aug 22, 2016 ... California's ban on the use of suction dredges to extract gold from rivers is legal and not overridden by a 19th century federal law that allows mining on federal land, the California Supreme Court ruled Monday. The court's unanimous decision was a victory for environmentalists and a blow to miners, who...

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California Supreme Court Upholds Moratorium on Suction Dredge ...

Aug 22, 2016 ... SAN FRANCISCO, Calif.— The California Supreme Court today upheld a statewide moratorium on recreational suction dredge mining for gold and said regulations protecting water supplies, fisheries, wildlife and cultural resources from the practice are valid. Suction dredge miners had asked the court to...

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Impacts of suction dredging on rivers, fish and aquatic communities ...

The new law permanently places rivers and streams that provide habitat for sensitive salmon and lamprey off limits from suction dredge mining. Suction dredge mining is a type of recreational gold mining that is particularly concentrated on the Rogue and Umpqua rivers. This type of hobby mining traps and kills young fish...

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Suction Dredge Gold Mining: From Crisis to a Solution - Oregon ...

Oregon has always allowed suction dredge gold mining on its rivers. It's the modernized version of panning by hand for gold, which was quite common in some areas of the U.S. in the nineteenth and early twentieth centuries. One of the areas well known for gold mining is the southwest Oregon coast. Gold Beach got its...

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University Press of Colorado - A History of Gold Dredging in Idaho

—Jay Fell, University of Colorado, Denver. "Providing a record of Idaho's dredging history for the first time, this book is a significant contribution to the knowledge and understanding of Western mining, its technology, and its overall development as a major industry of the twentieth century." —Mining History News.

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Recreational Gold Panning and Dredging Regulations – Utah ...

Recreational dredging on any stream requires a permit from the Utah Division of Water Rights. U.S. Forest Service (USFS): Most of the National Forests in Utah are open to prospecting, including gold panning. However, some areas within the National Forests are privately owned or already contain mining claims; therefore,...

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Supreme Court lets California's ban on suction-dredge mining stand ...

Jan 8, 2018 ... The U.S. Supreme Court rejected a challenge Monday to California's ban on suction-dredge mining for gold, a technique that extracts minerals from riverbeds while dumping residue that can include toxic mercury back into the environment. The high-pressure underwater vacuums, used mostly in mountain...

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Cascadia Wildlands » Suction Dredging and High Banking for Gold

Suction dredging for gold involves the disruption of compacted stream beds and underwater gravel deposits by dislodging materials and sucking them through a tube attached to a gasoline-powered water pump. ... (Suction dredge mining can have a deleterious effects on the early life cycles of salmon and steelhead.

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Dredge Mining and the Early 1900s | Breckenridge, CO

... earlier mining booms were over. Dredge boats, which employed relatively few people, began operating in the area in 1898 and worked the valley floor until 1942. Thinking the Tiger Placers Company would provide jobs during the national depression, Breckenridge Town officials allowed the Tiger #1 Gold Dredge to chew...

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Snelling Gold Dredging Company Placer Mine - Mindat.org

Snelling Gold Dredging Company Placer Mine, Snelling, Snelling District, Merced Co., California, USA : A former placer Au-PGE (Pt-Ru-Pd-Rh-Os-Ir) mine (dredge) located in sec. 3, T5S, R14E, MDM, 3.6 km (2.2 miles) E of Snelling, along the S side of the Merced River between river miles 50 & 51. First ...

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Protect the Klamath & All California Rivers from Suction Dredge ...

Protect the Klamath & All California Rivers from Suction Dredge Gold Mining. Suction Dredge in the Klamath River. Take Action: Send the Water Board a comment letter by February 28th 2017, and come to a hearing near you.

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Effects of suction dredging on streams: A review and ... - Forest Service

Effects of Suction Dredging on Streams: a Review and an Evaluation Strategy. By Bret C. Harvey and Thomas E. Lisle. ABSTRACT. Suction dredging for gold in river channels is a small-scale mining practice whereby streambed material is sucked up a pipe, passed over a sluice box to sort out the gold, and discarded as tail-.

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Recreational Gold Dredging - Constellation Mining Company

Hello Folks, Seems there are some of you that are planning trips to Alaska. I thought I might do a little post with places I've been and pay-to-pan and free areas where I have gotten good gold. Kennecott Copper Mine in McCarthy, Alaska. If you guys are planning a trip here, message me and I'll give you some tips on making...

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