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Small Mining Operations

What Is Your Grade?

After paying for the mine fleet, mill capital, supplies, fuel, power and labor, at today’s metal prices, does this mine make a profit?

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Additional articles that might interest you...

Addressing EPA Overreach: What Dredgers Need to Know


The Environmental Protection Agency (EPA) has been attempting to extend their authority and intimidate miners and other public land users for decades. Suction gold dredgers are no exception, and we want to highlight a recent example of how to deal with this federal overreach.

Small-Scale Concentrating and Recovery Methods


The first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.

Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks


I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.

Ask the Experts


Ore testing and other advice for starting up a mining operation.

Persistence Leads to Over a Pound of Gold


I have figured out over the years that the winning combination is hard work, persistence, knowledge, and a little luck. This leads me to describe one of my best finds ever, a “honey hole” of placer gold, if you will.

Building A Portable Gold Mill


Through the milling process, the rock must be crushed and the values extracted. Let’s break down our discussion into the different parts and elements of the mill…

Principles of Designing Your Mill Production System, Part II: Mill Design


Starting small with quick profitability gives you a lot of financial elbow room plus real-world experience that can be used for final mill design.

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The Bawl Mill   • Ask The Experts - Info on Santa Cruz beach placers?   • Ask The Experts - Detectors and flour gold   • Ask The Experts - Why is the gold in these clays?   • Ask The Experts - Can you explain colloidal gold?   • Ask The Experts - Where did this kimberlite come from?   • Ask The Experts - Can gold particles combine to form a nugget?   • Placer Gold Deposits in the Western States   • Evaluating Gold Recovery with Mass Balance Calculations   • Clues for Detecting Ancient River Channels and Flats   • State of Idaho Looks to Invest in Gold and Silver   • Colorado Uranium Mining in the 1950s Boom   • Drywashing for Desert Gold—Part II   • Decoding Dredge Capacity   • I Just Tripped Over A Nugget   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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