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Large Scale Mining

The Montanore Copper and Silver Project

This adit will be nearly 3.5 miles long when it reaches the ore zone.

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Unique Rare Earth Mine in Texas


Exploration for and prospecting in search of similar deposits should focus on rhyolite bodies located in fluorite-bearing areas.

High Sulfidation Epithermal Deposits


They tend to be big, coming in large to extremely large sizes. They can also be amazingly rich and produce huge amounts of very high-grade ore.

The Ely Copper-Gold District of Nevada


The main ore deposits of the Ely district are associated with an east-west belt of altered and mineralized rocks measuring about one mile wide that extends 8 miles westward from Ely.

Re-Opening Nevada’s Relief Canyon Mine


When I read about these new discoveries, I often wonder how the original operators ignored all the additional ore. Yet this has happened again and again in Nevada and many other places.

EPA Reopens Comments on Pebble Project


The settlement did not grant an immediate approval for the project, but it did begin to clear the way for the company to apply for federal permits—a path the Obama administration previously had thwarted.

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.

Designing and Evaluating Placer Gold Recovery Plants


For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...

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