Small Mining Operations
The Seven Troughs Mining District
September 2016 by Chris Ralph
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
Dredging The Outside Bend
This stringer was where it was not supposed to be, and it contained nuggets that were not supposed to be there.
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.
Dredging Backwards?
Before I tell you what dredging backwards is, I’ll tell you why my team and I decided to give this very unconventional dredging method a try.
River Dredging vs. Creek Dredging—Part II
While river dredging in fast water, don’t be afraid of being swept out of your dredge hole by the current. If this happens—and it most certainly will in fast water—there is no need to panic. Don’t try to swim against the current because you will waste much energy in an effort to conquer the river. Just let it take you downstream.
Spanish Gold Ledge Still Producing Gold
The Gold Eye placer claims, located in the La Cholla district of Arizona, are still producing some beautiful gold. From the days of the Spanish explorers and Mexican miners, men have tunneled into the earth in search of gold in this area.
Long-Term Camping Plan at Fortymile Proposed by BLM
A draft environmental assessment of a proposal to allow long-term camping by gold miners along 21 miles of the North Fork of the Fortymile Wild and Scenic River is available from the Bureau of Land Management.
PLP and MMAC Update
Subscription Required:
The Bawl Mill
• Our Readers Say
• Ask The Experts: Is there a safe DIY alternative to cyanide or mercury for extraction?
• Ask The Experts: Should I take my claim access problems to the Desert Advisory Council?
• Ask The Experts: How do I identify gold in hard rock that may be mixed with other metals?
• Ask The Experts
• Ask The Experts
• Legislative and Regulatory Update
• Pickers and Nuggets
• Modern-Day Claim Jumping
• Oregon's Waldo and Galice Mining Districts Unite
• Attention to Detail - Part II
• CA Supreme Court Rules Against Rinehart - But There Is A Solution
• Summertime Gold Panning
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
MMAC & PLP Update
