All Articles
The Boludo Placers, Sonora
November 2004 by Edgar B. Heylmun, PhD
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.Countries Want More Concessions From Miners
Bulgaria has followed the recent moves of Mongolia and Venezuela, demanding renegotiation of existing agreements and more concessions from mining companies.
Ask the Experts
Q: How do metal detectors work around precious metal ore bodies?
Company Notes
• Coeur d'Alene Mines Corp.
• Northern Dynasty Minerals Ltd.
• Kimberly Gold Mines, Inc.
• SpectrumGold Inc.
Melman on Gold & Silver
News during the past month seemed to focus directly on economic and political events close to home in the good old USA. As talk of recession—or worse—mounted, and as one stock market segment after another weakened sharply, the economic and political leaders of the nation sprang into decisive action.
The Canton Lead
As the great Australian gold rushes of the 1850s gathered momentum, hopeful prospectors rushed from all parts of the globe, not least among these were the ubiquitous Chinese.
Company Notes
• Vista Gold Corp
• Pan American Silver Corp
• Mountain Province Mining
Subscription Required:
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
