![]() ![]() Initially, rich, easily discovered, surface and river placers were mined until about 1864. Gold has been mined from placer gold deposits up and down the state and in different types of environment. Finally, those interested in byproduct gold recovery from sand and gravel operations and other large placer deposits will find descriptions of appropriate equipment and byproduct recovery installations. Those intending to mine small- to medium-sized placer deposits will find detailed descriptions of suitable equipment and recovery methods. Recreational and independent miners will find information on available equipment and designs with some suggestions for improving recovery. The information presented herein applies to small as well as large placer mining operations. One notable method not described is the cyanide process, the recovery of gold through leaching with cyanide, a hazardous substance that must be handled with great care. In addition, the reported efficiency and reliability of various types of equipment used today is presented. Selected gold recovery operations are described in detail. Included is detailed information on equipment, practices, recovery factors, efficiency, design, and, where available, costs. ![]() ![]() Here is practical, timely information on Placer Mining Methods and equipment used in placer gold recovery. ![]()
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