The Bawl Mill

August 1999 by Kenneth Harn

Treasure Hawk Mine Back in Action

June 2004
Some of you may recall our article on the cleanup of the Treasure Hawk Mine claims in our August 2000 issue. Much has happened since then. Cutthroat Mining Corporation has completed all major restoration projects and...

Heavy Sands Mining

February 2013
Lately my mind has been involved with group 4 of the transition elements, namely titanium, zirconium, and hafnium. They all have similar chemical properties. Of greatest interest to economic geologists and miners is that these valuable elements often occur together in sands.

Ask the Experts

August 2007
Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)
If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated?

Arizona's Border Silver Camps

July 2001
Not much has changed along the original stage road that runs easterly from an old schoolhouse northeast of Nogales into the Patagonia Mountains of southern Arizona. Marked on the maps as Duquesne Road, the route has been in use for over 130 years, climbing from the hot desert floor to an almost 6,000-foot elevation pass before dropping back down the eastern slope of the mountains to reach the old mining camps of Washington, Duquesne, and Lochiel.

Melman on Gold & Silver

September 2012
Despite a variety of other side subjects, the dominant source of financial headlines during the past month continues to be Europe, and we note two particular foci...

PLP Update

October 2018

Priorities will include meeting with the EPA regarding suction gold dredging permitting and with the Forest Service regarding revisions to CFR 228A regulations related to mining and access on public lands.

The Bawl Mill

May 2011
• From makers to takers
• Ministry of Mother Earth
• Where not to invest

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