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History & Geology

Jadeite in California

...two jadeite locations in California have been thoroughly researched by geologists. There are no doubt others that lie in wait.

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The Golden Days of Julian, California


Some scattered reports say that gold may have been washed from streams here as early as the 1840s, but the undisputed major discovery came in 1870.

Yesterday's Gold—Today's Mine


It would seem that we are often indeed destined to repeat history. In terms of gold discovery, even with all the advancements that have been made over the years, it seems we are once again on the cusp of returning to the 1800s world of gold mining. Even as you read this, a new gold rush is taking place in a sleepy little town in South Carolina.

The Golden Streams of Butte County, California


Even though these were some of the earliest placer deposits to be worked, there is still plenty of gold left today—it just takes more work to recover. Knowing about the old locations where gold has been found is the first step to success.

Gold Deposits of Montana


Historically, Montana has been an important gold producer, in terms of both lodes and placers, and it still produces gold for the prospector today.

Enrichment of Mineral Deposits by Weathering—Part II


While both zinc and lead deposits also are enriched by the surface weathering process, in part two we will look at the enrichment process for copper and also gold deposits, and at the interpretation of leached outcrops to figure how rich the concentrated deposits below them may be.

Gold Deposition and Gradients of Placer Streams—Part I


When placer miners from the gold rush era began experimenting with the slope of their sluices, they must have pondered the ideal slope for trapping gold in a creek bed too. Logic suggests the same is true for streams...

Prospecting for Surface Flood Gold Placers on Low and Intermediate Gradient Streams


Sample panning is a very important method used to find the richest parts of a flood gold deposit before setting up equipment and running material.

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The Bawl Mill   • Our Readers Say   • Ask The Experts   • Ask The Experts   • Exploring Snakehead   • One of the Richest Beaches Ever Mined   • Prospecting for Gold in Baja California   • What's All This Talk About Mining Districts?   • The Power of Mining Districts   • What is a Mining Right?   • The Gold, Silver and Base Metal Mines of Eureka, Nevada   • Tips for Detecting Nugget Patches   • Mining Stock Quotes and Mineral & Metal Prices   • State Lends Help to County in Nevada Road Fight   • Melman on Gold & Silver   • Utah Approves funds to Fight Feds

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