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The Boludo Placers, Sonora

The Boludo placers described here include gravels that have been listed under many different names, including Altar, Golden Triangle, Llanos del Oro, San Francisco, and Trincheras, among others. The placers are on desert flats at the northwest end of Sierra Santa Rosa, about 2,600 feet above sea level. It is in a region of northwest-trending mountain ranges separated by broad desert valleys.

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The Bawl Mill   • Editorial: Montana's Controversial Rock Creek Mine   • First Load of Concentrate Leaves Reopened Ruth Mine   • Uranium Industry Enjoys Rebound as Prices Nearly Triple   • BLM Warning About Purchase of Mining Claims on the Internet   • Determining the Amount of Gold in a Quartz Specimen   • Placer PGMs in Coon Creek, California   • Getting Your Float Circuit Layout Right   • Pick Up Austria's New Coin—If You Can Lift It   • New Prospecting Guides Available Online   • Police Extend Detention of Newmont Executives   • Picks & Pans—Drywashing and Detecting in Southern California   • Over The Divide—Merwin (Merv) H. Hemp   • The Golden Highway—Placer County   • Northwest Miners Rally a Success   • Mine Threat Just a Stunt to Criticize Land Laws   • MINExpo 2004 Convention Report   • Looking Back   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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