Bucket Line Dredges
September 2009 by Chris RalphFor many years, mechanical mining in waterways was seen as an impossibility by miners, especially in the Western US. The few dredges that had been tried at various locations were generally built on designs similar to those that had been used in harbor excavation work, but it was found that they were...
The mining and logging community of Red Lake, Ontario, population 5,000, is about 450 miles, as the crow flies, north of Minneapolis, Minnesota.
Australia’s Perth Mint currently holds the record for the world’s largest gold coin.
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
• The 75-ounce Butte County nugget is the largest found in California since the 156-ounce Mojave nugget in the 1970s...
We found a fairly large boulder nestled in the shoreline close to the campsite within a well-known gold drop zone. I thought that it possibly was laying on bedrock, and could very likely hide some gold. We were going to move it and have a look.
Once a seam is found it can be traced for miles in either direction. While you are tracing a clay line, you are looking for indicators. The indicators that I look for are ironstone, hematite, different color clays intermingled with the clay line, and a very iron-rich, brown gritty soil.
Depending on the ore and if significant sulfides are present, a hard rock miner may be able to get away with simply using a flux to digest the other minerals that may be present.
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