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Large Scale Mining

Drilling for Ore

In the simplest sense, drills can be divided by their mode of action—percussion, rotary or a mixture of the two.

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Northern Dynasty To Appeal Alaska Permit Rejection


The proposed mine would be built on state-owned land in the Bristol Bay region, near the world’s largest wild sockeye salmon fishery.

Making A Big Discovery


We sent them a lot of information, including my presentation about the area and its potential. We were excited to learn a couple weeks later that the company was interested in the property.

The Snapshot


Once all the numbers from all the samples and water tests are compiled, a snapshot of the performance of each tank in the process circuit can be seen side-by-side.

Mining Returns to Historic Comstock


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The Bawl Mill


• Just because it looks American, doesn’t mean it is…
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Determining The Optimal Crushing Size for Gravity Recovery


It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.

Preserving the True History of the Ivanhoe


My partner had the contacts and it wasn’t long before we had an agreement in place and the company had a geologist on site. I recall a time when he was getting the lay of the land, so to speak, and he broke off a rock sample and inspected it with his magnifier.

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