U.S. Dept. of Interior Inspectors in Arizona

March 2000 by Staff

Ask The Experts—Difference between a Geiger counter and scintillator

October 2011
Would you explain the difference between a Geiger counter and a scintillator and how they operate in uranium prospecting?

Ask The Experts - Should I be seeing black sands in the tailings of my sluice box?

March 2022

Discovery of the Silver Bullets

April 2001
In 1926, Carl W. Chilson wrote the authentic history of his family and the discovery of the legendary Apache Mine of the Silver Bullets. The story starts out in 1868 when Steve L. Chilson leaves Bandera, Texas, with his family en route...

Ask the Experts

December 2013
Market for scheelite concentrates?

Legislative and Regulatory Update

August 2011
• California suction dredging
• House shows support for public land use

Proper Spacing of Placer Sample Sites

September 2013
The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.

Bawl Mill

March 2023

March 2023

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