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Using Mineral Deposit Models
June 2003 by Lawrence Dee
Mineral deposit models have been used in mineral exploration for thousands of years. They were obviously not called models as we use the term today, but the idea of accumulating data to predict mineral deposits is the same. Models can be valuable tools in mineral exploration and assessment and are routinely used by major mining companies in locating and evaluating mineral deposits.The Bawl Mill
• What's good for the goose is good for Senator Feinstein...
• So much waste, it could fill a book...annually
• Just put it on my card...
Roads Protecting Grizzlies Reopen
U.S. Forest Service officials are drawing criticism from environmentalists for reopening some back-country roads that had been closed to protect threatened grizzly bears.
From the Editor
As we all get back to “normal,” or as close to it as we can, I want to take this opportunity to thank all of our advertisers for sticking it out through the hard times.
Green Valley Reconnaissance

How to Interpret Assay Values
This assay system of ounces per ton sounds simple enough, but the use of the metric system and the additional measuring terms of “grams per ton” and “parts per million” (ppm) has created some misunderstanding of ore value.
Strategies for Detecting Heavily Pounded Areas—Pt II
Look around for areas where you don’t see detector holes or drywasher piles and try your test hole at these spots to determine depth to bedrock.
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
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