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The Stonewall Jackson Mine, San Diego County, California
July 2001 by Richard H. Peterson, PhD
For obvious reasons southern California is not known historically for its gold mines. Gold production was concentrated heavily in the Sierra Nevada foothills in the northern part of the state. However, the high mountainous region of eastern San Diego County was the site of a number of productive hardrock gold mines, notably in the late 19th century.CA Supreme Court Rules Against Rinehart - But There Is A Solution
Even if the California Supreme Court had ruled in favor of Rinehart, suction dredge miners would be facing the wrath of the State Water Resources Control Board...
Gold Prospecting on the East Fork River, Alaska (Part III—Conclusion)
In this trip, Riley came along with Jay, and Harold came down later. We brought a six-inch dredge down to the creek. We had hoped to use it, but we didn’t.
Silver Bull Resources Sees Bright Future for Silver & Zinc
The Sierra Mojada Project lies within a historic high grade silver, lead and zinc mining district originally discovered in 1879.
Green Valley Reconnaissance
During this trip we found enough gold to make us want to come back, even with the punishment of a very long, tough hike.
The Basics of Froth Flotation
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
Legislative and Regulatory Update
• USFS Draft Reclamation Bond Guide needs your comments
• Colorado seeks ownership of rights of way
• Comments needed for Sierra Nevada EIS
• Roadless rule to stand, with a few changes
Small-Scale Processing of Hard Rock Ores
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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