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Picks & Pans: Prospecting for Lode Gold
October 1999 by Edgar B. Heylmun, PhD

Mining Gold at 16,000 Feet
The view from the pass at 16,500 feet elevation was astonishing. In one direction, one range of the Andes Mountains rose to over 18,000 feet, while in the other direction the peaks soared to almost 20,000 feet.
Gold Hunting on Libby Creek
The biggest nugget I have found detecting here was three grams and the following weekend someone found a 9-gram nugget while detecting. Some have even found quarter-ounce nuggets, with one being a chevron nugget.
Pediments
A pediment is a broad, gently sloping erosion surface or plain of low relief that is often found in arid and semi-arid regions at the base of a receding mountain front. The example shown is from the Palo Verde Ranch 15-minute topographic quadrangle, southwest of Tucson, Arizona. This is one of the best examples the writer has ever seen.
Extracting & Smelting Your Gold

Pros and Cons of Big Detector Coils

Making Adjustments to Catch Fine Gold
This fine gold that is so common is probably the most notorious for eluding our riffles and mattings.
Designing and Evaluating Placer Gold Recovery Plants

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