Prospecting & Detecting
Gully Prospecting and Mining
September 2014 by Don Robinson
This article is about our recent gold prospecting adventure, which has yielded over 20 ounces of specimen gold—with more to come.
Drywashing in Black Canyon, Arizona
May 2016After the hike and a quick snack break we gathered a few buckets of material to really dial in the drywasher for the most efficient recovery. This involves leveling the unit, setting the riffle box drop angle and regulating the speed in which the material is processed.
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.
Watch Out for Split Estates When Filing Your Claim
The only thing that saved me was talking to a local miner who gave me a “heads up” that private individuals owned all the mineral rights in that section.
Silverton's Gold
Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.
A Few Methods for Sampling Hardrock Deposits
With a little homework and a methodical approach to sampling, a prospector can determine if a deposit is worthy of more of an investment...
Still Gold in Humbug, Arizona
Has anyone made it through childhood, or even adulthood, without at least one dream of finding gold or buried treasure? It is the stuff of daydreams—the kindling for the flame of hope. We so long for it that we eagerly accept stories and maps from friends and strangers alike that promise us fame and fortune.
Determining the Amount of Gold in Rich Ores
This is just the type of specimen that could have been easily ignored by the old-time miners. It felt a little heavier in my hand than a chunk of quartz of that size ought to have been.
Subscription Required:
The Bawl Mill
• Ask the Experts
• Ask the Experts
• Taking on the EPA, Sasquatch, Ratchilla and Gold Dredging
• Wilfley Tables—Repair, Rebuild & Set Up
• Designing and Evaluating Placer Gold Recovery Plants
• Finding Streams of Gold
• This is Why You Check Your Tailings
• Lode or Placer: What Difference Does It Make?
• New Rules to Impact the Lease/Buy Decision
• There's a First Time for Everyone
• Appeals Court OKs Permits for Upper Peninsula Mine
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
Legislative and Regulatory Update
• Mining Journal Honored as Prospecting Magazine of the Year!
